Darex XT3000i Operator's Manual

Table of Contents

The Darex Story ....................................................................................... page 3

Safety Instructions .................................................................................. page 4

Material Safety Data Sheet ...................................................................... page 5

XT-3000 Specification Shee t .................................................................... page 6

Capabilities & Performance ..................................................................... page 7

XT-3000 Reference Drawing .................................................................... page 8

Setting Up the XT3000 ............................................................................. page 9

Drill Alignment ....................................................................................... page 11

Drill Sharpening ..................................................................................... page 15

Drill Point Splitting ................................................................................. page 17

Chuck Information ................................................................................. page 19

Wheel Information ................................................................................. page 21

General Maintenance ............................................................................. page 25

Trouble Shooting Section ....................................................................... page 29

Drill Nomenclature ................................................................................. page 31

Wiring Diagram ...................................................................................... page 32

Electrical Diagram .................................................................................. page 33

Chuck Parts List ..................................................................................... page 34

Exploded View - Chuck .......................................................................... page 35

Parts List ............................................................................................... page 36

Exploded View - Machine ....................................................................... page 37

Exploded View - Sharpening Fixture 118°-150° ................................... page 38

Exploded View - Alignment Assembly .................................................. page 39

LEX050 - Large Drill Attachment ........................................................... page 41

LEX100 - XY Table Attachment .............................................................. page 45

LEX150 - Countersink Attachment ........................................................ page 47

LEX200 - Brad Point Attachment ........................................................... page 51

LEX250 - Step Drill Attachment ............................................................. page 53

LEX300 - 90º - 120º Drill Attachment ................................................... page 57

*For Technical Service visit our web site at http://www.darex.com
Or call Darex Corporation 800-547-0222
Or contact your Darex Distributor

PP16180KF– REV1

Revised 12-02-03

1

2

The Darex Story

The Darex Story

Darex Corporation began in 1973 in Beecher, Illinois. The D, A and R of Darex are the initials of three
generations of the Bernard family; David, Arthur and Richard Bernard. David and his father Richard
founded Darex. Grandfather Arthur Bernard, who earlier founded the Bernard Welding Company,
contributed his energy and guidance to Darex. Art’s inventions revolutionized the welding industry.

In 1978, Darex relocated to Ashland, Oregon. Grandson Dave and son Dick carry on Arthur’s legacy of
inventiveness. Darex grew to become the most recognized name in the cutting tool sharpening
industry. Today, Darex is a world-leading manufacturer of precision cutting tool sharpeners.

Darex is proud to offer a complete line of quality precision cutting tool sharpeners at affordable prices.
Before our first days, we at Darex had looked at our competitor’s sharpeners and asked ourselves:
“Must cutting tool sharpeners be complicated? Why must the choice be limited to cost prohibitive
accuracy or low price inaccuracy?” Our sharpeners prove you can hav e it all: Simplicity , Accuracy,
and Affordability.

We have always emphasized innovative product design and tested technology. The experienced
personnel at our modern manufacturing facility use the latest production methods. The Darex
marketing team knows first-hand the machines we sell and will guide you to the best machine for
your needs. Our skilled technical service department is happy to answer your questions about our
products or cutting tools.

The XT-3000 Sharpener

The Darex XT-3000 Xpandable Drill Sharpener sharpens standard and split point drills at any angle
from 118 to 150 degrees. It sharpens drills sized from 3mm to 21mm. (.118 - .826) This sharpener is
available with the choice of CBN wheels for HSS and cobalt or diamond wheels for carbide tools. The
XT-3000 allows you to control each drill’s point configuration including the relief and design of the
split point. All adjustment and attachment changes are done without tools. To keep your Darex XT­3000 in top condition, please refer to the maintenance section of this manual.

Replacement wheels and parts are listed in the parts list on page 36. A schematic breakdown of the
machine is on page 37 of the manual.

*Optional attachments allow you to sharpen other cutting tools including 90° spot drills, step drills,
brad points, larger drills, Weldon and single flute countersinks.

3

Safety Instructions

Safety Instructions

FOR YOUR OWN SAFETY, READ INSTRUCTION

Caution:

Caution:

WHEN USING ELECTRIC TOOLS, BASIC SAFETY
PRECAUTIONS SHOULD ALWAYS BE FOLLOWED
TO PREVENT THE RISK OF FIRE, ELECTRIC
SHOCK AND PERSONAL INJURY, INCLUDING
THE FOLLOWING:

230v~,50Hz,6A

230v~,50Hz,8A

MANUAL BEFORE OPERATING MACHINE!

• WE DO NOT RECOMMEND OPERATING

MACHINE WITHOUT A VACUUM SY ST EM
RUNNING

• GRINDING DUST INHALED/ INGESTED

CAN BE HARMFUL TO YOUR HEALTH.

• GRINDING PARTIALS WILL CAUSE

DAMAGE TO THE INTE RNAL
COMPONENTS

• WH EN MAINTENANCE OR MACHINE

ADJUSTMENTS ARE PERFORMED ON
SHARPENER ALWAYS: Push the emergency

stop button, unplug unit from power supply
and use a “LOCK OUT” “TAG OUT” procedure.

• FOLLOW INSTRUCTIONS ENTITLED
“DAREX XT-3000 Maintenance" in this
Instruction Manual.

• NEVER TOUCH INTERNAL PARTS OF THE
SHARPENER WHEN THE SHARPENER IS
ON The rotating grinding wheel can cause

injury.

• US E CA UTION WHEN REPLACING THE
GRINDING WHEEL Follow instructions

entitled “How to change a wheel”, on page 21
of this Instruction Manual.

• KEEP GUARDS IN PLACE and in working
order. See Decal at left.

• REMOVE WRENCHES Alw ays check to see
that any tools have been removed from
sharpener before turning it on.

• KEEP WORK AREA CLEAN Cluttered areas
and benches invite accidents.

• DON'T USE IN DANGEROUS
ENVIRONMENT Do not use power tools in

damp or wet locations, or expose them to rain.
Do not use tools in the presence of flammable
liquids or gases.

• KEEP WORK AREA WELL LIT

• STORE EQUIPMENT in a safe place when not

in use.

• DON'T FORCE TOOL It will do the job better
and safer at the rate for which it was designed.

• US E THE RIG HT TOOL Don’t force tool or
attachment to do a job it was not designed for.

• ALWAYS USE SAFETY GLASSES Also use
face or dust mask if cutting operation is dusty.
Everyday eyeglasses only have impact
resistance lenses and they are NOT safety
glasses. See Decal at left.

• AVOID ACCIDENTAL STARTING Make sure
switch is in the “OFF" position before plugging
it in.

• US E REC OMMENDED ACCESSORIES
Consult the owner's manual for recommended
accessories. The use of improper accessories
may cause hazards. See Decal at left.

• CHECK FOR DAMAGED PARTS Before
further use of the tool, a guard or other part
that is damaged should be carefully checked to
assure that it will operate properly and perform
its intended function. Check for alignment of
moving parts, binding of moving parts,
breakage of parts, mounting and any other
conditions that may affect its operation. A
guard or other part that is damaged should be
properly repaired or replaced.

• NEVER LEAVE TOOL RUNNING
UNATTENDED Turn power off.

• USE PROPER EXTENSION CORD Make sure
extension cord is in good condition. When using
an extension cord be sure to use one heavy
enough to carry the current the Drill Sharpener
will draw. An undersize cord will cause a drop in
line voltage, resulting in a loss of power and/or
overheating.

• DO NOT USE DAMAGED OR UNSHAPED
WHEELS Use grinding wheels suitable for speed

of grinder.

• THE CONTINUOUS A-WEIGHTED sound
pressure level at the operator’s ear is not over
60dB (A).

• RISK OF INJURY DUE TO ACCIDENTAL
STARTING. Do not use in an area where

children may be present.

• THE WEIGHTED ROOT MEAN SQUARE
ACCELERATION VALUE to which the arms are

subjected to does not exceed 2.5 m/s2.

GROUNDING INSTRUCTIONS

• FOR ALL GROUNDED CORD CONNECTED
TOOLS:

• In the event of a malfunction or breakdown,
grounding provides a path of least resistance for
electric current to reduce the risk of electric
shock. This tool is equipped with an electric cord
having an equipment-grounding conductor and a
grounding plug. The plug must be plugged into a
matching outlet that is properly installed and
grounded in accordance with all local codes and
ordinances. Do not modify the plug provided if it
will not fit the outlet, have the proper outlet
installed by a qualified electrician. Improper
connection of the equipment-grounding
conductor can result in a risk of electric shock.
The conductor with insulation, having an outer
surface that is green with or without yellow
stripes, is the equipment-grounding conductor. If
repair or replacement of the electric cord or plug
is necessary, do not connect the equipment­grounding conductor to a live terminal. Check
with a qualified electrician or serviceman if the
grounding instructions are not completely
understood, or if in doubt as to whether the tool
is properly grounded. Use only 3-wire extension
cords that have 3-prong grounding plugs and 3­pole receptacles that accept the tool’s plug.
Repair or replace damaged or worn cord
immediately.

• GROUNDED, CORD-CONNECTED TOOLS
INTENDED FOR USE ON A SUPPLY CIRC UIT
HAVING A NOMINAL RATING LESS THAN
250 VOLTS: See Table 1 for minimum gauge

cords.

Table 1 Minimum Gauge Cords

Volts

120 V 25 / 7.5 50 / 15 100 / 30 150 / 45

Amp ere R ating

More than Not m ore than

0 6 18 16 16 14

6 10 18161412
10 12 16 16 14 12
12 16 14 12

240 V 50 / 15 100 / 30 200 / 60 300 / 90

Total length of cord (feet / meters)

AWG

Not Recommended

4

Material Safety Data Sheet

US DEPARTMENT OF LABOR Form Approved Occupational Safety and Health
Administration 0MB No 44-Ri 367

Required under USDL Safety & Health Regulations for Ship Repairing, Shipbuilding and Chip breaking

MANUFACTURERS NAME: Darex Industrial Corporation
EMERGENCY PHONE NO: [phone]
ADDRESS: 280 E. Hersey Street Building C, Ashland, Oregon 97520
CHEMICAL NAME & SYNONYMS Diazon-Electroplated Diamond/CBN Products, Diamond (uncoated)
Man-Made Diamond. RVG. MBG. MBS Product Families. Standard Series and 300 Series Diamond Micron Powder
TRADE NAME & SYNONYMS: Electroplated CBN Wheels, Electroplated Diamond Wheels
CHEMICAL FAMILY: Abrasive Any Grade

CHEMICAL NAME Nickel Industrial Diamond
REGULATED Yes No
CAS#: 7440-02-0 7882-40-3
AGIH TLV 1 0 mgm3 10.0 mg m3 (PNOC)
CARCINOGEN Yes No
Materials are regulated by OSHA 29 CFR 1910.1200, Hazard Communication Standard

BOILING POINT (F) n/a MELTING POINT n/a
SPECIFIC GRAVITY n/a VAPOR PRESSURE n/a
VAPOR DENSITY n/a EVAPORATION RATE n/a
SOLUBILITY IN WATER n/a SOLUBILITY IN ALCOHOL n/a
SOLUBILITY IN OTHER SOLVENT n/a
PERCENT VOLATILE BY VOLUME (%) n/a
APPEARANCE AND ODOR Solid, Clear, White To Yellow To Dark Crystals Silver Color.

FLASH POINT n/a
(METHOD USED) FLAMMABLE LIMITS LEL UEL
EXTINGUISHING MEDIA n/a
SPECIAL FIRE FIGHTING PROCEDURES: n/a
UNUSUAL FIRE AND EXPLOSION HAZARDS: n/a

PRIMARY ROUTE(S) OF ENTRY: Inhalation, Ingestion, Skin, Eye(s)
EFFECTS OF OVEREXPOSURE

INHALATION: Difficulty in breathing (Dust from wheel use).
INGESTION: If a dust, symptoms are variable.
SKIN: Irritation (especially if sensitive to Ni ).
EYE(S): Irritation (from Ni or diamond particle).
FIRST AID AND MEDICAL INFORMATION:
INHALATION: Move to fresh air. Give oxygen if necessary
INGESTION: Obtain medical attention.
SKIN: Wash thoroughly with water Obtain medical help if necessary
EYE(S): Flush thoro ug hly wi th w a ter . Obta in me d ic a l ass ist a nc e

OTHER POTENTIAL HEALTH RISKS
Nickel (Ni) is listed as a carcinogen Avoid long exposure. Consult medical personnel for first aid and medical information

STABILITY: Unstable ( ) Stable (x)
POLYMERIZATION: May occur ( ) Will not occur (x)
INCOMPATIBILITY: (Materials to avoid) n/a
HAZARDOUS COMPOSITIONS PRODUCTS: n/a
CONDITIONS TO BE AV OIDED: Contact with strong acids/caustics, enclosed areas.

STEPS TO BE TAKEN IN CASE MATERIAL IS RELEASED OR SPILLED: Normal clean up procedure
WASTE DISPOSAL METHOD:

Waste will contain nickel. Dispose in accordance with all applicable Federal, state, and local regulations.

RESPIRATORY PROTECTION:
Respiratory protection as needed see OSHA-29 CFR 1910.134

VENTILATION: LOCAL EXHAUST: strongly preferred
MECHANICAL (GENERAL): Use only if adequate to maintain below TLV’s.
PROTECTIVE GLOVES: As desired by user.
EYE PROTECTION: Recommended see OSHA29 CFR 11910.215
OTHER PROTECTIVE EQUIPMENT: Use standard precautions for grinding operations.

NORMAL STORAGE AND HANDLING:
Store in clean, dry area, away from chemicals.
NORMAL USE: Use adequate ventilation (See Section VIII )

Form OSHA-20

FORMULA: n/a

MATERIAL SAFETY DATA SHEET

129 CFR 1915, 1916.19171

SECTION II COMPOSITION

SECTION III - PHYSICAL AND CHEMICAL DATA

SECTION IV - FIRE AND EXPLOSION HAZARD DATA

SECTION V - HEALTH, FIRST AID AND MEDICAL DATA

SECTION VI - CORROSIVELY AND REACTIVITY DATA

SECTION I

SECTION VII - SPILL, LEAK AND DISPOSAL PROCEDURES

SECTION VIII – PERSONAL PROTECTION INFORMATION

SECTION IX - STORAGE AND HANDLING PROCEDURES

5

XT-3000 Specification Shee t

XT-3000

DRILL SHARPENER

The XT-3000 was designed incorporating Versatility, Simplicity & Expandability. Optional attachments
sharpen other cutting tools including step drills, brad points, larger drills, Weldon and single flute
countersinks. This unit is an upgrade-able sharpener that grows with your needs. Simplicity will allow
multiple users successful results with minimal training.

Specifications for 115V & 230V

· Standard Grinding Wheels: 180 Grit CBN - HSS, Cobalt & 180 Grit Diamond - Carbide

· Max Wheel Diameter: 6.45 inch ( 164 mm)

· Arbor Size: 1.25 inch (31.75 mm)

· Wheel Surface Speed: 75 ft/sec (23m/sec) for 60 Hz Model 115V

· Motor Specs: ¼ hp - 2850 rpm – 60 Hz Model 115V

· Operating Time: Continuous Duty

· Voltage: 115 VAC +/- 10% & 230 VAC +/- 5%

· Frequency: 60 Hz +/- 5% - Model 115V
50 Hz +/- 5% - Model 230V

· Sharpener Current: 2.5A Run / 40A Start Model 115V

1.6A Run / 25A Start Model 230V

· Accessor y Current: 6.0A Run Max.

· Operating Temperature: 40° to 95° F ambient (4° to 35° C)
. Humidity: Non-condensing

· Machine Dimensions: 16” W x 16” D x 10” H (41 x 41 x 26 cm)

· Machine Weight: 54.3 lbs (25 Kg)

· Shipping Dimension: 19” W x 19” D x 16” H (49 x 49 x 41 cm)

· Total Ship Weight: 62 lbs (28 Kg)

6

XT-3000 Features

95 ft/sec (29m/sec) for 50 Hz Model 230V
¼ hp - 3450 rpm – 50 Hz Model 230V

Capabilities & Performance

Capabilities & Performance

• Drill Types: Two fluted HSS, Cobalt or Carbide SAE & Metric twist drills

• Drill Point Styles: Standard Conic & Split Point

• Split Point Styles: Standard X split

• Point Angles: 118° - 150°

• Drill Diameter: 3 mm - 21 mm (.118 to .826)

• Lip Height Accuracy: ANSI B94.11, NAS 907 and ISO 10899 Standards

Decal Identifications

“Wear Safety Glasses” -

Accessory receptacle capacity -

230v~,50Hz,6A

230v~,50Hz,8A

“Do not operate without
wheel guard cover” -

7

XT-3000 Reference Drawing

230V Units Only

8

Setting up the XT3000

The XT-3000 comes equipped with grinding wheels, a
sharpening fixture and 2 chucks, 1; 3mm – 12mm & 1;
12mm – 21mm.

1. Remove from shipping box and all packaging

material before powering up the machine. NOTE:
Due to the weight of the XT-3000, it is suggested that
the lip of the casting, located above the motor ,can be
used as a handle for lifting.

2. Located at the back and on the right side of the
XT3000 is the power receptacle. Within that
receptacle you will find a power inlet and accessory
receptacle.

3. The power inlet is located at the bottom
of the power receptacle.

Plug the power cord in to the power inlet and then in
to the power outlet source.

6. Unbox the chucks.

7. Make sure sharpening fixture is secured to base. For
more information on securing the sharpening fixture

see page 15.

8. To power on
the machine,
push the rocker
switch to the
ON position to
start the
grinding whee l
in motion.

9. To sharpen a drill follow steps in the next three
sections; Align, Sharpen and Point Splitting.

4. The accessory receptacle is located at the

top of the power receptacle and will allow
you to use a dust extraction system in
conjunctio n with the use of the XT3000.

*We highly recommend the use of a
vacuum when the machine is in use.
Darex offers a vacuum system
compatible with your XT3000. Call
Darex for more information.

• SA12075EA - 115V

• SA12072EA - 230V

5. Make sure the grit tray is in
place and secure.

9

10

Drill Alignment

The alignment port is located on the left side of
the XT-3000.

The first stage to sharpening a drill starts with
the alignment process. In the alignment
process, you will go through a few necessary
steps prior to sharpening. Setting the material
removal amount, adjusting the alignment tube
to produce desired relief amount. Use athe
Darex EZ align to set the drill to length and
time the cutting edge.
To complete the alignment process, follow
steps 1 – 8 listed below.

Setting Material Removal

Amount

1. Rotate the material removal
knob to adjust the amount of
stock you want to remove from

the end of the drill. Stock
removal ranges from approximately .010 ­.030. Remove more material if the drill is
excessively worn or damaged. Remove less
material if you are
renewing the drill.

Rotate the
material removal
knob clockwise to
decrease the
amount of
material removal

Tip:
Sharpen drills
on Minimum MTO to achieve longer wheel
life.

or counterclockwise to
increase material removal.

Setting Alignment Tub e for Desired Heel

Relief

118°135°

2. To increase or
decrease the amount of
heel relief produced
during sharpening,
change the position of
the alignment tube.

Lift the
alignment
locking
lever.

This will allow you to rotate the alignment
tube in either direction.
To increase heel relief, rotate the alignment
tube counterclockwise.

118°135°

11

Drill Alignment

To decrease heel relief, rotate clockwise.

118°135°

To secure the alignment position, tighten

locking lever.

Setting the

drill to the

proper length

3. Holding the chuck in a horizontal position
insert the drill into the appropriate sized
chuck. (Sizes are on the cam).

4. Rotate the chuck knob clockwise, which
closes the chuck jaws onto the drill. Then
slightly loosen the chuck jaws by rotating
the chuck knob counterclockwise, about ½
turn. To determine how tightly the drill
should be held during the alignment
process, the drill should slide freely and
drop out when the chuck is held in a
vertical position.

Timing the cutting edge

5. Insert the
chuck and drill
into the
alignment tube.

Align the cam dogs with the slots.

Allow the drill to protrude approximately 2
inches as shown.

12

The cam dogs should bottom out against
the slots.

2”

Drill Alignment

6. S-L-O-W-L-Y
squeeze
together the
red slide
handle until
it touches
casting. We
emphasize
slowly,
because
squeezing
the handles
too quickly
pushes the
drill too
deeply into
the chuck. NOTE:
will not touch the wheel during the
sharpening process.

7. With the handles held together, look
through the viewing port and see if drill is
positioned correctly.

If this happens, the drill

· The pawls should be seated in

the helix of the drill. If incorrect,
loosen chuck knob and repeat
step 4. The jaws are most likely
gripping the drill body too tightly
and will not allow the drill to
rotate into position.

CORRECT INCORRECT

8. Once the drill has been aligned correctly
and without releasing the slide handle,
tighten the chuck knob clockwise until the
chuck jaws grip the drill securely. Release
the slide handle and remove chuck from
alignment tube.

· Drill point

should be
touching
the end of
the pusher
shaft cap.

13

14

Drill Sharpening

The Sharpening fixture is located on the right
side of the machine.

Mounting the Sharpening fixture

1. Rotate the locking lever so the flat edge is at
the top, horizontal and in a straight line with
the base casting.

2. Position the sharpening

fixture so that the 2
location holes on the
base of the alignment
fixture are aligned with the 3/8 dowel pins.

3. After sharpening
fixture is in place,
rotate the locking
lever clockwise until
snug. This will secure
the fixture to the base.

Adjusting the Point Angle

You must loosen the
sharpening fixture and
slide the point angle
indicator to the desired
degree.

1. To loosen, pull
the locking
lever towards
you.

2. Place fingers on each

side of the sharpening
pivot base casting.

3. Gently slide base

casting in either
direction to align
the angle
indicator with the
desired point angle
degree.

4. Secure the selected
point angle position by
pushing the locking
lever away from you
until it stops.

5. Before sharpening, make sure the sharpening

fixture is secure and no longer slides in either
direction.

15

Drill sharpening

WARNING: Make sure the Split Port

Cover and eye shield are in place before
grinding. (International Machines Only)

Power up machine

To turn the machine on, push the top of the
rocker switch. The machine will power up and
the grinding wheels will begin to rotate.

Sharpen

1. To make sure
the drill clears
the wheel, push
the sharpening
tube all the way
to the left
before inserting
chuck.

2. Insert the chuck
with the thickest
part of the cam
touching the
swing bearing.

3. Release sharpening tube very slowly.

4. With slight
pressure
towards the
grinding wheel,
rotate the
chuck 360
degrees,
several times in
a clockwise
direction. To
achieve an
efficient and
balanced
sharpening on
both cutting
edges, avoid stopping when the drill is in
the grind. Do not reposition your hand in
mid-sharpening wait until the drill rotates
off the wheel. Continue rotating the chuck
in 360 degree rotations until the grinding
noise is minimized to a near silence.

5. Before removing the chuck, push the
sharpening tube to the left, remove
chuck. Release sharpening tube slowly.

16

Drill Point Splitting

The Point Splitting Port is located in the center
of the machine.

Approximately 3-7° rake is created, producing a
drill with a self-centering point. Its advantages
are the ability to reduce thrust and eliminate
walking at the drill point. This is a distinct
advantage where drill bushings/fixtures are not
used.

Splitting

POINT SPLIT & RELIEF DIAGRAMS

DEPTH OF SPLIT DIAGRAM

Past Center To Center Below Center

Upon completion of
the sharpening
procedure, Do Not
loosen the drill in the
chuck. Insert the
chuck into the point
splitting port. Align the
cam dogs with the
slots on the point split tube. Let the weight of
the chuck ease the drill down and onto the
grinding wheel. With slight pressure, be sure the
chuck stays seated in the point splitter.

When the grinding noise is
reduced to near silence pull the
chuck out about 1/2 way and
rotate it 180 degrees to split
the opposite side of the drill

point.
NOTE: Do not force the chuck into the grinding
wheel or damage to the drill or wheel may
occur.

Adjusting the Depth of Split

The depth of split can vary from drill

manufacturer to drill manufacturer. The point
split depth adjustment
feature designed on the
XT-3000 makes it easy to
mimic multiple split
styles. The point split
depth adjustment lever is
attached to the point
split chuck tube. As you
move the lever, it backs the chuck tube away
from the wheel or moves it
closer into it.

1. Located on the underside
of the point splitter is the
point split depth
adjustment lever.

2. To increase the
depth of split push
lever to the left
toward the + sign.
This will allow the
drill to travel deeper
into the wheel,
increasing the depth
of split.

3. To decrease the
depth of split push
the lever to the right
toward the – sign.
This will back the
drill away from the
wheel.

NOTE:

deeper than desired, you will have to regrind the
drill beyond the over split portion before splitting
again.

To correct a drill that has been split

17

Drill Point Splitting

drill more strength and

135°118°

durability. This added

POINT SPLIT A NGLE

DIAGRAM

split angle creates a
pointed profile at the
very center of the drill,
producing a self­centering effect and
reduces drill point
walking at the start of a
hole.

135°118°

1. Loosen the point
split nut by rotating
the nut
counterclockwise.

2. Rotate the point
split angle adjuster clockwise to increase
the split angle.

120°
130°

95°
105°

Pointed Flat

3.

Adjusting the Split Angle Rotatio n

Typically the split angle
of a drill is 120° - 130°
from the cutting edge.
By increasing the
rotation of the split
angle, the split portion of
the drill meets the
cutting lip at a greater
angle, which will give the

135°118°

Rotate the adjuster counter clockwise to
decrease the split angle.

4. Once split angle adjustment has been
made, rotate the point split nut clockwise
to retain the selected setting and secure
the point split angle adjuster.

18

Chuck Information

A regular maintenance program should
be set up for each chuck. Keeping your

chuck clean and grit free will help
maintain drill concentricity and lengthen the life
of your chucks. For detailed cleaning
instruction, See Maintenance page 25.

XT-3000 CHUCKS

The XT-3000 jaw chuck system was designed
with accuracy and simplicity in mind. As a result,
the XT-3000 chuck allows you to cover a large
diameter range of drills without the aid of
individual collets. You can quickly change from
the largest drill diameter to the smallest in
seconds. The accuracy of the chuck will produce
drills that exceed ANSI, NAS 907 & & ISO 10899
standards. The various chucks and accessories
have drill diameter capabilities that range

from .125 – 1.1875 (3mm to 30mm).

Make sure large drills are secure

after tightening the chuck.

Morse Taper drills:

To secure a Morse Taper drill in the chuck, it is
necessary for the drill to have a minimum flute
length of 4.000 inches. The taper will then be
free from the grasp of the jaws, eliminating
interference with the larger tapered shank. The
other option for holding these types of drills is a
split bushing. Bush the body of the drill up to or
larger than the interfering diameter.

End Mill shank drills:

Typically, an end mill drill has a shank diameter
larger than the body of the drill.
Some End Mill shank drills can be sharpened on
the XT-3000, depending on the length of the
flute verses the length of the shank.

CHUCK DISASSEMBLY &

MAINTENANCE

periodically the chuck assembly should be
disassembled and cleaned.

the Darex dust extraction system.

The use of a dust extraction system while

grinding will help reduce the amount of

maintenance necessary, however,

We recommend

1. Place flats of chuck body into a vice, do not

over tighten.

2. Place chuck
wrench,

PP16480SF,

(optional) on
dogs of chuck
knob assembly.

Rotate wrench
counter­clockwise to
remove chuck
knob/jaw
assembly from
chuck body.

3. Using a 2.5 mm hex
wrench remove set screw.

4. The internal
pieces must
remain keyed in
order to remove
the closing screw
from the chuck
knob assembly.
Insert the 2.5
mm wrench into
the set screw
hole.

19

Chuck Information

5. Rotate chuck knob
counter clockwise
until the wrench
reaches the top of
the slot.

6. Remove wrench and
reinsert into the set
screw hole above the
slot.

7. Rotate the chuck knob counterclockwise until

the closing screw exits the knob assembly.

8. The chuck knob assembly does not come
apart from this point.

TO REASSEMBLE:

Reassemble in reverse order.

CHUCK DESCRIPTIONS AND PART #’S

SA16400TA - 3-12 mm Standard Chuck
SA16450TA - 12-21mm Standard Chuck
SA16500TA - 21-30mm Large Drill Chuck
SA16975TA - 3-12mm Step Drill Chuck
SA16980TA - 12-21mm Step Drill Chuck
SA16890TA - 3-12mm 90° Chuck
SA16880TA - 12-21mm 90° Chuck
SA16916TA - 3-12mm Brad Point Chuck
SA16918TA - 12-21mm Brad Point Chuck

20

XT-3000 WHEEL INFORMATION

The Darex XT-3000 comes equipped with
electroplated CBN (Cubic Boron Nitride) OR
Diamond grinding wheels. The wheel comes
installed on your sharpener ready to sharpen
drills.

Sharpening with an electroplated CBN (cubic
boron nitride) or Diamond grinding wheel reduces
grinding cost and improves quality of the finished
product. These results are obtained because the
grinding material is super abrasive. The CBN is
second only to diamond in hardness. In fact, CBN
has twice the hardness and four times the
abrasion resistance of an aluminum oxide grinding
wheel. The CBN and Diamond wheel last longer;
the grinding process is faster and less grinding
time is lost due to wheel breakdown &
maintenance.

WHEEL MAINTENANCE

These wheels are maintenance free from truing
and dressing but will need to be cleaned
periodically. Disconnect the power from

the machine using a lock out tag out
procedure. After removing the wheel from the

sharpener, saturate the wheel with any type of
oil-less solvent, such as Automotive Brake
Cleaner. It is helpful to use a soft bristle brush
and lightly brush the saturated wheel, loosening
the impacted grinding particles. Re-saturate the
wheel to flush out any loosened debris. Do not
use any type of dressing tool on these wheels.
Damage to surface will occur and greatly shorten
the wheel life.

NOTE:

discolor or burn, the wheel life may be exhausted
and the wheel will need to be replaced.

If after cleaning wheel, the drills still

are available if carbide is to be sharpened
on this machine.

WHEN TO REPLACE THE

WHEEL?

Eventually, the long-life electroplated wheel in
your XT-3000 will wear out. Indicators that a
wheel change is necessary are: a drop in
performance such as drill burning or excessively
slow sharpening time. Inspect the wheel for
abrasive quality. A worn wheel will appear
smooth. If it is necessary, replace the worn
wheel(s). New wheels will initially produce a
coarser grind. However, this aggressiveness will
disappear after the first one hundred or so drill
sharpenings. You should experience many drill
sharpenings from each new wheel.

*Darex Corporation does not re-plate or
recommend re-plating the grinding wheels. For
replacement wheels, contact your Darex
distributor or Darex Corporation.

HOW TO CHANGE A WHEEL

1. Unplug unit from power supply

and use a “LOCK OUT” “TAG OUT”
procedure.

WHEEL DESCRIPTIONS AND

PART#’S

• P P16050GF – 180-grit CBN grinding wheel

• P P16060GF – 100-grit CBN Point Split

grinding wheel

• P P16052GF – 180-grit Diamond grinding
wheel

• P P 16062GF – 260-grit Diamond Point Split
grinding wheel

• PP16070TF – Grind wheel retainer

Do not attempt to grind carbide drills
with CBN wheels. Diamond wheels

2. Using a 3mm
hex key,
remove 3; 3mm
socket head
cap screws
(PP12240FF)
from wheel
guard cover.

21

Wheel Information

3. Pull wheel
guard cover
away from
wheel.

4. Using a 4 mm
hex key,
remove 3;
5mm socket
head cap
screws
(PP16318FF)& split washer (PP08650FF)
from grinding
wheel retainer.

5. Remove the
wheel retainer

6. Pull wheel
toward you
then to the
right and out of
the machine
cavity.

7. Clean the machine cavity as well as the
mounting hub and wheel before
reinstalling.

8. Repeat steps in reverse to install new
wheel.

NOTE: Because the Darex grinding wheel
cannot be trued it is critical that the motor hub &
wheel register be cleaned. Once wheel has been
installed, rotate the wheel by hand to check that
the wheels run true. If not, loosen the screws ,
reposition the wheel and tighten the screws.

Separating grinding wheel from point split
wheel

The grinding and point
split wheel are piggy
backed and bolted
together. To change
any one of the wheels
you must first
separate them. You
can access the bolts
from the back side of
the sharpening wheel.

1. Using a 5mm
hex key, remove
the 3; 6mm
socket head cap
screws
(PP16348FF) &
split washers.
(PP10282FF)

2. The two wheels can now be separated.

Recalibrating

Material Removal

After a wheel change, verify
and/or recalibrate material
removal.

Use a 3/8 HSS standard twist drill, measure the
length of drill before sharpening.

1. Rotate material removal knob to maximum
take off.

2. Align drill as though

you intend to
sharpen it. Follow

Alignment steps on
page 11.

3. Once drill is set to
length, aligned
and captured in

22

the chuck securely, remove from
alignment port.

4. Measure the amount of drill protruding
from the end of the chuck to the tip of the
drill.

5. The length of the drill protruding from the
top of the chuck should measure .970-.980
(24.63 mm - 24.89 mm)

Calibrating the Material

removal knob

1. At the rear of
the machine
base there is a
small access
hole.

2. Insert a 3/16
Allen wrench
into the
access hole.

3. To advance
the pusher
shaft cap,
reducing the amount of drill stick out,
rotate the wrench clockwise.

4. To retract the pusher shaft cap, increasing
the amount of drill stick out, rotate the
wrench counterclockwise.

Each ¼ turn will adjust .010 (.25 mm) or one
full turn will adjust .04 (1.0 mm) After adjusting
the pusher shaft assembly, realign the drill and
re-measure the amount of stick out. Repeat the
steps 1-4 until the drill protrudes .970-.980 in
length. (24.63 mm - 24.89 mm)

Wheel Information

23

24

GENERAL MAINTENANCE

To extend the life of your

sharpener, its recommend a

routine maintenance program be

put in place. Every

120-machine hrs is suggested, or

more often if necessary.

WARNING: Remove the plug before

carrying out any adjustment, servicing or
maintenance.

Vacuum system:

Optional but recommended

Using a dust extraction system can improve the
sharpening life of the machine. Unplug vacuum
from power source. Check filter or canister on a
regular basis.

.

Wheel cleaning:

These wheels are maintenance free from truing
and dressing but will need cleaning periodically.
After removing the wheel from the unit, saturate
the wheel with any type of oil-less solvent, such
as Automotive Brake Cleaner. It is helpful to use
a soft bristle brush and lightly brush the
saturated wheel, loosening the impacted
grinding particles. Re-saturate the wheel to flush
out any loosened debris.

Always clean a brand new wheel before
using.
If after cleaning wheel, the drills still
discolor or burn, the wheel life may be
exhausted and the wheel will need to be
replaced.

Recalibrating Material Removal

After a wheel change, verify and/or recalibrate
material removal.

Use a 3/8 HSS standard twist drill, measure the
length of drill before sharpening.

1. Rotate material
removal knob to
maximum take off.

2. Align drill as though
you intend to
sharpen it. Follow

Alignment steps on
page 11.

3. Once drill is set to

length, aligned and captured in the chuck,
securely remove from alignment port.

4. Measure the amount of drill
protruding from the end of
the chuck to the tip of the
drill.

5. The length of the drill
protruding from the top of
the chuck should
measure .970-.980 (24.63 mm - 24.89
mm)

Calibrating the Material removal
knob

1. Located at
the rear of
the machine
base, you
will find a
small access
hole.

2. Insert a 3/16
Allen wrench
into the
access hole.

3. To advance the pusher shaft cap, reducing
the amount of drill stick out, rotate the
wrench clockwise.

4. To retract the pusher shaft cap, increasing
the amount of drill stick out, rotate the
wrench counterclockwise.

Each ¼ turn will adjust .010 (.25 mm) or one
full turn will adjust .04 (1.0 mm). After adjusting
the pusher shaft assembly, realign the drill and
re-measure the amount of stick out. Repeat the
steps 1-4 until the drill protrudes .970-.980 in
length. (24.63 mm - 24.89 mm)

25

General Maintenance

Chuck Maintenance

Chuck maintenance is very important. To sustain
the life of your chucks and to maintain precision
lip height concentricity, clean the chucks on a
regular basis. Some tools are necessary to
disassemble the chuck, You will need: Wrench
PP16480SF (Optional)

Disassembly:

The use of a dust extraction system while
grinding will help reduce the amount of
maintenance necessary, however, periodically
the chuck assembly should be disassembled and
cleaned.

1. Place flats of chuck body into a vice.

2. Place chuck

3. Rotate wrench

wrench on dogs
of chuck knob
assembly.

clockwise to
remove chuck
knob/jaw
assembly from
chuck body.

4. Using a 2.5 mm hex
wrench, remove set
screw.

5. The internal
pieces must
remain keyed in
order to remove
the closing screw
from the chuck
knob assembly.
Insert the 2.5
mm wrench, into
the set screw
hole.

6. Rotate chuck knob
counterclockwise
until the wrench
reaches the top of
the slot.

7. Remove wrench and
reinsert into the set
screw hole above the
slot.

26

General Maintenance

8. Rotate the chuck knob counterclockwise until
the closing screw exits the knob assembly.

9. The chuck knob assembly does not come
apart from this point.

Chuck Cleaning:
Once disassembled, clean all parts with a type of
oil-less solvent such as Automotive Break Cleaner.

Chuck Reassembly:

Reassemble in reverse order.

Point Split Tube Cavity:

Routinely vacuum and using a dry cloth, wipe out
the inside of the Point Split Tube. Removing
grinding dust will help produce consistent split
point drills by retaining the ID dimensions of the
tube and reducing early wear.

Sharpening Tube Cavity:

Using a dry cloth, wipe out the inside of the brass
tube, removing grinding dust. Over time it may be
necessary to replace the sharpening tube. The
sharpening tube is threaded into the housing
using right-handed threads. To remove, rotate
tube counterclockwise using a spanner wrench.
Replace as needed.

Wheel Housing Cavity:

While grinding wheel is out of machine and before
replacing wheel, vacuum out wheel housing and
wipe around the hub area.

External Machine Castings:

Wipe down external machine castings with a
mild household cleaner.

Grit Tray/Vacuum Port Connection:
Grit tray

At the back of the
machine, located
underneath the
grinding motor is the
grit tray. Drill grindings
will accumulate inside
the grit tray. The grit
tray has a magnetic
liner to attract and hold
these dust particles. Do
not let the tray become more than 1/3 full. To
remove tray, unscrew brass thumb screw.
Remove tray and dump contents. Wipe excess
dust from the tray with a rag.

Vacuum Port Connector (Optional)

The grit tray has
a knock out plug
that can be
removed by hand
and replaced with
the vacuum tube
(SA16030TA).
Use this port to
connect a vacuum
hose to the
XT3000. This method of ext r acting dust
particles from the machine will keep it cleaner
and is recommended.

Oil Lubrication:

Never use an oil-based lubricant on any part
of this machine! Oil-based lubricant will collect
grinding dust particles. Powdered graphite
may be applied to any sliding parts located on
the machine.

27

28

Trouble Shooting XT-3000 Drill Sharpening

Symptom

Using ON/OFF switch does not work
Machine won’t power up

Cause

• No power at outlet

• Make sure power cord is plugged in to

machine and outlet

• Release e-stop (230v machine only)

• E-stop nut is loose and stuck down in the

off position (230v machine only)

• On/off switch need s to be replaced

• Wiring lead disconnected

Symptom

Tip of drills burn or discolor

Cause

• Wheel needs to be cleaned

• Material take off too aggressive

• Wheel needs to be replaced

Symptom

After pressing the switch to the ON
position, the grinding wheel does not start
up

Cause

• On/Off switch needs t o be repl aced

• Grinding wheel obstructed and can’t rotate

• Grinding motor bad

• Wiring loose

Symptom

Unable to secure drill in or release drill
from chuck

Cause

• Tapered shank drill

• The drill may have a slight taper to the

body

• Shank of drill larger than body

• Drill has multiple diameters that are

interfering with jaws

• Incorrect drill diameter for that particular
chuck

• Drill flutes are damaged or have burrs

• Chuck needs to be cleaned

Symptom

Drill incorrectly split

Cause

• Check settings on the split point fixture

• Did not align correctly

• Point Split Tube calibration is off

Symptom

Material take off v a ri es

Cause

• Wheel not secure to motor hub

• Wheel calibration is off after new wheel

change

• Cam dog not properly seated in alignment
slot during alignment set up

• Drill is pushing back in the chuck during
grinding

•

Operator is not sparking drill out

Symptom

No material take off during grinding

Cause

• Drill loose in chuck

• Drill tip not touching the pusher shaft cap

during alignment process

Symptom

Length of time drill is in the grind becomes
excessive

Cause

• Material take off too excessive

• Grinding wheel needs to be cleaned

• Grinding wheel needs to be replaced

Symptom

Lip height concentricity is out of tolerance

Cause

• Material take off too excessive

• Chuck needs to be cleaned

• Sharpening tube needs to be cleaned

• Chuck is worn out and needs to be

replaced

• Sharpening tube is worn and needs to be
replaced

• Wheel is not running true

29

30

DRILL NOMENCLATURE

Drill Nomenclature

FACET & CONIC DRILL STYLE

PICTURE AND

NOMENCLATURE

CONIC DRILL

POINT SPLIT & RELIEF D IAGRAM S

DEPTH OF SPLIT DIAGRAM

Past Center To Center Below Center

CENTER OF SPLIT DIAGRAM

Past Center

POINT SPLIT ANGLE DIAGRAM

To Center Below Center

CLEARANCE

FACET DRILL

Pointed Flat

FACET DIAGRAM (re-sharpen on the XPS16)

Past Center

(over facet)

RELIEF DIAGRAM

120°
130°

To Center Below Center

95°
105°

(under facet)

31

Wiring Diagram

32

Electrical Diagram

33

Chuck Parts List

5) - PP16430TF - CHUCK JAW GUIDE 5) - PP16430TF - CHUCK JAW GUIDE

6) - PP16435LF - CHUCK JAW RACE 6) - PP16435LF - CHUCK JAW RACE

SA16450TA - STANDARD CHUCK PARTS 12MM - 21MM SA16980TA - STEP DRILL CHUCK PARTS 12MM - 21MM

7) - PP16420TF - CLOSING SCREW 7) - PP16420TF - CLOSING SCREW

8) - PP16415TF - CLOSING SLEEVE 8) - PP16415TF - CLOSING SLEEVE

9) - PP16442FF - SNAP RING 9) - PP16442FF - SNAP RING

10) - PP02404SF - THRUST WASHER 10) - PP02404SF - THRUST WASHER

11) - PP16405TF - CHUCK CAM 11) - PP16975TF - CHUCK CAM

12) - PP16410TF - CHUCK KNOB 12) - PP16410TF - CHUCK KNOB

1) - PP16450TF - CHUCK BODY 1) - PP16450TF - CHUCK BODY

2) - SA16427SA- (7 EA) CHUCK JAW 2) - SA16427SA- (7 EA) CHUCK JAW

3) - SA12567RA - (7 EA) CHUCK JAW SPRINGS 3) - SA12567RA - (7 EA) CHUCK JAW SPRINGS

4) - PP16440FF - CHUCK JAW KEY SCREW 4) - PP16440FF - CHUCK JAW KEY SCREW

5) - PP16465TF - CHUCK JAW GUIDE 5) - PP16465TF - CHUCK JAW GUIDE

6) - PP16470LF - CHUCK JAW RACE 6) - PP16470LF - CHUCK JAW RACE

7) - PP16418TF - CLOSING SCREW 7) - PP16418TF - CLOSING SCREW

8) - PP16415TF - CLOSING SLEEVE 8) - PP16415TF - CLOSING SLEEVE

9) - PP16442FF - SNAP RING 9) - PP16442FF - SNAP RING

10) - PP02404SF - THRUST WASHER 10) - PP02404SF - THRUST WASHER

11) - PP16422TF - CHUCK CAM 11) - PP16980TF - CHUCK CAM

SA16500TA - LARGE DRILL CHUCK PARTS 21MM - 30MM SA16890TA - 90° DRILL CHUCK PARTS 3MM - 12MM

12) - PP16410TF - CHUCK KNOB 12) - PP16410TF - CHUCK KNOB

1) - PP16500TF - CHUCK BODY 1) - PP16400TF - CHUCK BODY

2) - SA16530SA- (9 EA) CHUCK JAW 2) - SA16425SA- (5 EA) CHUCK JAW

3) - SA12569RA - (9 EA) CHUCK JAW SPRINGS 3) - SA12565RA - (5 EA) CHUCK JAW SPRINGS

4) - PP16440FF - CHUCK JAW KEY SCREW 4) - PP16440FF - CHUCK JAW KEY SCREW

5) - PP16535TF - CHUCK JAW GUIDE 5) - PP16430TF - CHUCK JAW GUIDE

6) - PP16540LF - CHUCK JAW RACE 6) - PP16470LF - CHUCK JAW RACE

7) - PP16520TF - CLOSING SCREW 7) - PP16418TF - CLOSING SCREW

8) - PP16515TF - CLOSING SLEEVE 8) - PP16415TF - CLOSING SLEEVE

9) - PP16472FF - SNAP RING 9) - PP16442FF - SNAP RING

10) - PP16525NF - THRUST WASHER 10) - PP02404SF - THRUST WASHER

11) - PP16505TF - CHUCK CAM 11) - PP16890TF - CHUCK CAM

12) - PP16510TF - CHUCK KNOB 12) - PP16410TF - CHUCK KNOB

SA16919TA - BRAD POINT CHUCK PARTS 3 MM - 12MM SA16880TA - 90° DRILL CHUCK PARTS 12MM - 21MM

1) - PP16450TF - CHUCK BODY 1) - PP16450TF - CHUCK BODY

2) - SA16427SA - (5 EA) CHUCK JAW 2) - SA16425SA- (7 EA) CHUCK JAW

3) - SA12567RA - (5 EA) CHUCK JAW SPRINGS 3) - SA12567RA - (7 EA) CHUCK JAW SPRINGS

4) - PP16440FF - CHUCK JAW KEY SCREW 4) - PP16440FF - CHUCK JAW KEY SCREW

5) - PP16465TF - CHUCK JAW GUIDE 5) - PP16465TF - CHUCK JAW GUIDE

6) - PP16470LF - CHUCK JAW RACE 6) - PP16470LF - CHUCK JAW RACE

7) - PP16418TF - CLOSING SCREW 7) - PP16418TF - CLOSING SCREW

8) - PP16515TF - CLOSING SLEEVE 8) - PP16415TF - CLOSING SLEEVE

9) - PP16442 - SNAP RING 9) - PP16442FF - SNAP RING

10) - PP02404SF - THRUST WASHER 10) - PP02404SF - THRUST WASHER

11) - PP16916TF - CHUCK CAM 11) - PP16880TF - CHUCK CAM

12) - PP16410TF - CHUCK KNOB 12) - PP16410TF - CHUCK KNOB

SA16918TA - BRAD POINT CHUCK PARTS 12 MM - 21MM

1) - PP16450TF - CHUCK BODY 2) - SA16427SA - (7 EA) CHUCK JAW 3) - SA12567RA - (7 EA) CHUCK JAW SPRINGS 4) - PP16440FF - CHUCK JAW KEY SCREW 5) - PP16465TF - CHUCK JAW GUIDE 6) - PP16470LF - CHUCK JAW RACE 7) - PP16418TF - CLOSING SCREW 8) - PP16515TF - CLOSING SLEEVE 9) - PP16442 - SNAP RING

34

Exploded View - Chuck

10) - PP02404SF - THRUST WASHER 11) - PP16918TF - CHUCK CAM 12) - PP16410TF - CHUCK KNOB REVISED 03-10-03

35

Parts List

REVISED 11-11-02

Optional Accessories

Exploded View / Alignment Assembly—page 41

41) - PP02022TF - PUSHER SHAFT CAP***

40) - PP16220XF - PUSHER WEDGE***

35) - PP16237RF - PUSHER BAR RETURN SPRING***

30) - PP02079TF - PAWL ARM BOLTS (2 REQUIRED)**

27) - PP16334FF - 5MM X 22MM SHCS ( 4 REQUIRED)*

24) - PP16280TF - BRAKE STOP SET SCREW*

19) - PP16250TF - ALIGNMENT TUBE NUT*

Not Shown LEX150 - COUNTERSINK ATTACHMENT COMPLETE

Not Shown LEX 150INTL- COUNTERSINK ATTACHMENT (w/ metric collets)

Not Shown SA16918TA - BRAD POINT CHUCK 12MM - 21MM (OPTIONAL)

Exploded View / Machine—page 37

Exploded View / Sharpening Fixture—page 39

XT-3000 PARTS LIST

LEX 900 - XT-3000 DRILL SHARPENER COMPLETE

Not Shown SA12072EA - 230V VACUUM ASSEMBLY COMPLETE 39) - PP02028RF - WEDGE RETURN SPRING***

Not Shown SA12075EA - 115V VACUUM ASSEMBLY COMPLETE 38) - PP16230TF - PUSHER GUIDE TUBE***

Not Shown SA16400TA- 3MM - 12MM STANDARD CHUCK COMPLETE 37) - PP16225BF - PUSHER GUIDE TUBE SUPPORT***

Not Shown SA16450TA- 12MM - 21MM STANDARD CHUCK COMPLETE 36) - PP16235TF - PUSHER SHAFT***

Not Shown PP09090PF - MACHINE COVER 34) - PP16240BF - MATERIAL ADJUST BRACKET ***

93) - PP16632SF - DOCKING LEVER 33) - PP02030TF - PUSHER RETURN REAR SPRING GUIDE***

92) - PP16634TF - DOCKING LEVER BOLT 32) - PP16338FF - 3/32 X 3/8 DOWEL PIN***

91) - PP16005TF - LOCATING PIN 31) - SA16225BA - PUSHER SHAFT ASSEMBLY COMPLETE*** (#41 - #32)

90) - SA16077TA - 230v MOTOR/HUB ASSEMBLY 90) - SA16075TA - 115v MOTOR/HUB ASSEMBLY 30) - SA16215XA - PAWL ARM ASSEMBLY COMPLETE**

89) - PP12040EF - 230v EMERGENCY STOP (INTERNATIONAL MACHINES ONLY) 30) - PP02082RF- PAWL ARM RETURN SPRING**

88) - PP12065EF - ELECTRICAL RECEPTACLE 30) - PP04219FF - 6-32 X 1/4 BHCS (2 REQUIRED)**

87) - PP16035EF - 115v SWITCH BREAKER 30) - PP02078NF - CARBIDE PAWLS ( 2 REQUIRED)**

36

87) - PP16037EF - 230v SWITCH BREAKER 30) - PP16215XF - PAWL ARMS (2 REQUIRED)**

86) - SA08664PA - RUBBER FEET & 6MM X 16MM BHCS (4 EACH) 29) - PP16283RF - MATERIAL LENGTH ADJUST SPRING*

85) - SA16040EA - ELECTRICAL BOTTOM COVER W/ (4) 6-32 TYPE F 28) - PP16285TF - MATERIAL LENGTH ADJUST SCREW*

84) - PP12076TF- VACUUM TUBE ATTACHMENT NUT* 26) - PP16210BF - PUSHER BAR*

83) - PP16030TF - VACUUM TUBE* 25) - SA08560LA - BEARING W/ 1/4 - 20 BHCS (SET OF 3)*

-SA16030TA - VACUUM TUBE/NUT ASSEMBLY

82) - SA16020SA - GRIT TRAY ASSEMBLY* 23) - PP16205SF - BRAKE BRACKET*

81) - PP12240FF - WHEEL GRD CSTING 4 MM X 18MM SHCS (3 REQUIRED) 22) - SA16615SA - PIVOT LOCK LEVER ASSEMBLY*

80) - PP16045CF - WHEEL GUARD CASTING 21) - PP16245TF - ALIGNMENT TU BE*

79) - SA16070TA - GRIND WHEEL RET AINER W/ 3 BOLTS 20) - PP16275TF - ALIGNMENT TUBE LOCK BOLT*

78) - PP16062GF - DIAMOND POINT SPLIT GRINDING WHEEL 260 GRIT 18) - PP16200CF - ALIGNMENT CASTING*

78) - PP16060GF - CBN POINT SPLIT GRINDING WHEEL 100 GRIT 17) - SA16270XA - SLIDE HANDLE ASSEMBLY*

77) - PP16052GF - DIAMOND GRINDING WHEEL 180 GRIT 16) - PP16202TF - ALIGNMENT STORAGE LINER*

77) - PP16050GF- CBN GRINDING WHEEL 180 GRIT 15) - SA16200CA - ALIGNMENT ASSEMBLY COMPLETE* (#31 - #16) & (#41 - #32)

Not Shown PP16480SF - CHUCK WRENCH

76) - SA16945BA - POINT SPLI T ADJUSTING LEVER* Not Shown LEX 050 - LARGE DRILL ATTACHMENT COMPLETE*

75) - PP16935TF - POINT SPLIT CHUCK TUBE* Not Shown SA16500TA - LARGE DRILL CHUCK 21MM - 30MM*

74) - PP16340FF - 5 MM X 50 MM SHCS (4 REQ U IRED)* Not Shown - LARGE DRILL ALIGNMENT FIXTURE - 30MM*

73) - PP16925TF - POINT SPLIT TUBE* Not Shown SA16580XA - LARGE DRILL SHARPENING FIXTURE - 30MM*

72) - PP16930TF - POINT SPLI T FAN ADJUSTER* 71) - PP16940TF - POINT SPLIT NUT* Not Shown LEX 100 - XY TABLE ATTACHMENT COMPLETE

70) - SA16925TA - POINT SPLIT ASSEMBLY COMPLETE* ( #76 - #71)

61) - PP16610TF - SHARPNEING TUBE PIVOT SHAFT* Not Shown PP16862TF - PP16862TF - 3 FLUTE COUNTERSINK CAM (OPTIONAL)

60) - SA16615SA - PIVOT LEVER ASSEMBLY* Not Shown LEX 200 - BRAD POINT ATTACHMENT COMPLETE

59) - PP16640TF - PIVOT LOCK NUT* Not Shown SA16916TA - BRAD POINT CHUCK 3MM - 12MM*

57) - PP16650RF - RETURN SPRING* Not Shown SA16950BA - LEX 250 - STEP DRILL ATTACHMENT COMPLETE*

56) - SA16645TA - SPRING TENSI ONER ASSEMBLY* Not Shown SA16975TA - STEP DRILL CHUCK 3MM - 12MM*

55) - SA16652TA - FEED BEARING ASSEMBLY* Not Shown SA16980TA - STEP DRILL CHUCK 12MM - 21MM (OPTIONAL)

54) - SA16657TA - SWING BEARING ASSEMBLY* Not Shown SA16970XA - STEP DRILL ALIGNMENT FIXTURE*

53) - PP16100CF - PIVOT BASE CASTING* Not Shown SA16950BA - STEP DRILL SHARPENING FIXTURE*

52) - PP16600XF - SHARPENING TUBE* Not Shown LEX 300 - 90° -120° POINT ATTACHMENT COMPLETE*

51) - PP16605TF - SHARPENING TUBE LINER* Not Shown SA16995XA - 90° - 120° SHARPENING FIXTURE

50) - SA16600XA - 118° - 150° SHARPENING FIXTURE COMPLETE* (#61 - #51) Not Shown SA16890TA - 90° POINT CHUCK 3MM - 12MM*

Not Shown SA16936TA - PROTECTIVE EYE SHIELDS (INTERNATIONAL MACHINES ONLY) Not Shown SA16880TA - 90° POINT CHUCK 12MM - 21MM (OPTIONAL)

EXPLODED VIEW — MACHIN E

37

EXPLODED VIEW SHARPENING FIXTURE 118-150

38

EXPLODED VIEW ALIGNMENT ASSEMBLY

39

Large Drill Attachment

LEX050

Congratulations on the purchase of your Darex
XT-3000 Large Drill Attachment. (21 mm—30

mm) As part of the assembly (see picture from
left to right) you should have a SA16565XA Large
drill alignment, SA16575CA Sharpening fixture,

and SA16500TA Large Drill Chuck.
By now you are familiar with the ‘quick disconnect’
feature of your XT-3000. Start by placing the
Large Drill Alignment on the top of your XT-

3000. Rotate the ‘Docking Lever’ clockwise to
securely lock the fixture in place. In a similar
manner, remove your current sharpening fixture
and replace it with the Large Drill Sharpening

alignment is adjusted by
rotating the black lever
located at on the front of the
alignment fixture. As per the
decal, rotating the lever
towards the operator will
reduce the amount of relief
ground onto the drill and
pushing the lever away from
the operator will increase the relief. Placing the
pin at the midway point on the decal is a good
starting place for 118° drills. For 135°-150° drills
start with the alignment 2 marks towards the
operator. You can set the alignment at any setting
necessary to achieve the amount of relief desired.

Place the drill in the chuck and turn the chuck
knob clockwise until the drill slides freely through
the chuck jaws. Next slide the Chuck and drill into
the alignment rotating the chuck until one of the

Fixture.
Now would be a great
time to determine the
point angle of the drill
that is to be sharpened
and adjust both the
sharpening fixture and
alignment to that point
angle. The Sharpening
fixture is adjusted by
pulling the red lever
towards (counter
clockwise) the operator
and sliding the fixture to
the point angle desired. Lock the fixture by
returning the red lever to its original position. The

‘cam dogs’ aligns with the
mating ‘notch’ in the fixture.

You will notice the opposite
‘dog’ aligns with a reference
mark machined into the
alignment fixture.

Now push the drill through the chuck until it
contacts the stop. Rotate the drill clockwise until

Incorrect Correct

41

the outer edge of the cutting lip is touching the
pins in the setting fixture.
Firmly tighten the chuck by turning the knob
clockwise while the chuck is still in the fixture.
Remove the chuck and drill. The drill is now
aligned and set to length to the chuck cam for the
necessary grinding.

Slide the chuck into the Sharpening fixture and
rotate the Chuck clockwise applying slight
pressure into the wheel. It is also necessary to
keep the cam up against the swing cam follower
bearing.

Try to sharpen the drill
in such a manner that
the drill is off the wheel
before you reposition
your hand on the chuck.

Grinding time will vary depending on wheel
condition and amount of material removal but it
should require a minimum of 8-10 rotations.

NOTE: The MTO drill stop setting is adjustable
using a 5/32” or 4 mm hex key if you think more
or less material removal is desired.

Please Note, you do not have the ability to split
drills from 21 mm to 30 mm on the XT-3000.

42

Large Drill Attachment

43

Large Drill Attachment LEX050

SA16615BA Pivot Lock Lever Assembly

PP16615BF Pivot lock le ver
PP16630FF 5mmX8mm SSS

SA16585TA Timing Adjuster Assembly

PP16283RF Material adjust spring
PP16285TF Material adjust screw
PP03924TF PS Latch Screw Handle
PP16585TF Large Drill Timing Adjuster
PP11015FF 1/8" Dowel Pins

SA16652TA Feed Bearing Assembly

PP16652TF Feed Bearing Bolt
PP08560LF Bearing

SA16657TA Swing Bearing Assembly

PP16655LF Swing Bearing
PP16657TF Swing Bearing Bolt

SA16645TA Spring Te nsioner Assembly

PP16645TF Spring Tensioner
PP12280FF M6 x 1 x 8mm SSS

SA16500TA

21-30 MM Chuck

PP16500TF Large chuck Body 21-30mm
PP16505TF 21-30mm chuck cam
PP16510TF 21-30mm chuck knob
PP16515TF 21-30mm Closing sleeve
PP16520TF 21-30mm closing screw
PP16525NF Thrust Wa sher
PP16530SF Jaws
PP16535TF Jaw guide
PP16472FF Snap ring
PP16540LF Jaw race
PP12560RF Jaw springs
PP16440FF Jaw key screw

44

XY Table Attachment

X-Y Table No Sub Assemblies, Send in for Repair

45

46

Countersink Instructions

LEX150

Congratulations on the purchase of your Darex
XT-3000 Countersink Attachment. This fixture

comes with 2 V-40 double angle collets and is
used in conjunction with the Darex XT-3000 X-Y
Attachment.

X-Axis Knob

Pivot Lock Knob

Y-Axis Knob

By now you are familiar with the ‘quick disconnect’
feature of your XT-3000. Begin by removing the
current sharpening
fixture and replacing it
with the X-Y table.
Secure it in place by
rotating the ‘Docking
Lever’ clockwise. In a
similar manner, lock
the Countersink
Attachment to the top
of the machine.

It is now necessary to
determine the shank
diameter of the tool that will
be sharpened and place the
corresponding collet into the
Countersink Attachment.

To do so
slowly rotate
the spindle
clockwise until
the Spindle
Lock engages
the spindle.

Spindle Lock

Now unscrew the
Draw Tube assembly.
Place the correct collet
in the end of the Draw
Tube and replace the
Draw Tube assembly
and tighten 3 or 4
revolutions. Should
you need a collet size other than the ones
provided, you may order them from Darex
Corporation. (1-800-547-0222)

Slide the cutting tool
into the spindle leaving
approximately 1” or
more of the tool
exposed. Loosen the
Alignment Thumb
Screw and rotate the
Alignment Arm
assembly around until
the dowel pin
intersects both the
cutting edge and the
heel simultaneously.

Tighten the Alignment
Thumb Screw. Rotate
the Draw tube
assembly clockwise to
tighten the tool in the
spindle. Return the
Alignment Arm to its
original position and
release the spindle lock
pin by pulling up and
turning the pin 90°.
The cutting tool is now
oriented to the spindle
cam and is ready to be
sharpened.

Alignment
Arm

Thumb Screw

47

To sharpen the tool, determine which angle the
tool will be sharpened at. To adjust the X-Y table,
loosen the Pivot Lock Knob and swing the table to
that angle. Tighten the Pivot Lock Knob.

Pivot Lock Knob

Remove the
Countersink
Attachment from
the top of the
machine and
place it on the X-Y
Table. Again,
rotate the
Docking Lever
clockwise to secure the fixture. Turn the machine
ON.
Using both the X and Y axis feed knobs, carefully
position the cutter into the grinding wheel.

grinding wheel. Loosen the Docking Lever and
return the Countersink Assembly to the top of the
XT-3000 to remove the cutter. The sharpening is
now complete.

Y-Axis Knob X-Axis Knob

Once the
tool touches
the grind
wheel, begin
to rotate the
spindle in a
clockwise
direction
slowly
feeding the
cutter into the wheel. Once the desired amount is
ground off, continue rotating 1 or 2 more
revolutions to “spark out” the cutter. While still
rotating the spindle, use one of the feed axis
knobs to position the cutter safely away from the

48

Countersink Attachment

49

Counter Sink Attachment LEX150

SA16823TA Alignment Assembly

PP16823TF Alignment Thumb Screw
PP16820BF Alignment Arm
PP16312FF 1/8"x2" Dowel pin
PP08558FF Washer

SA16860BA Swing Arm Assembly

PP16860BF Swing Arm
PP06136FF Dowel Pin

PP08560LF Bearing

SA16830TA

CS Spindle lock assy.

PP16830TF Indexing Pin Bushing
PP08041TF Indexing Pin
PP08046TF Indexing Pin Knob
PP08045TF spring
PP08376FF roll pin

50

BRAD POINT ATTACHMENT

LEX200

Congratulations on the purchase of the Darex XT­3000 Brad point Attachment. (LEX200) This
attachment consists of 2 pieces, 1 Sharpening
Fixture, SA16900BA and 1 - 3mm – 12mm Chuck,
SA16916TA. (The 12mm – 21mm Chuck,
SA16918TA is available
as an optional accessory)
Both components are
laser marked with a Brad
Point icon to minimize
confusion with other XT­3000 attachments.

SETTING UP:

To sharpen a
Brad Point, you
will have to
remove the
standard
sharpening fixture
and replace it
with the X-Y
Table (LEX100).
The Brad Point Attachment works in together with
the X-Y Table. By now you are familiar with the
‘quick’ disconnect feature or your XT-3000. Begin
by removing the
current sharpening
fixture and replacing it
with the X-Y Table.
Secure it in place by
rotating the Docking
Lever CW. In much
the same manner,
secure the Brad Point
Sharpening Fixture to
the X-Y Table.

ALIGNING THE DRILL:

The alignment of the drill
happens in the XT-3000
Alignment. Loosen the
Timing Tube Lock lever and
position
the Tube
@ 118°.
Push the
lever down
to lock the
tube. Align
the drill as

CORRECT INCORRECT

Pivot Lock Knob

X-Axis Knob

Y-Axis Knob

you normally would.

SETTING UP THE X-Y TABLE:

Brad point drills are ground with the X-Y Table
positioned at the 180° mark. Loosen the Pivot
Lock Knob and rotate the X-Y Table to 180°. Lock
the Table.

Pivot Lock Knob

SHARPENING:

With the XT-3000
sharpening mechanism making sure the drill

DOES NOT

use the X-Y axis knobs to position the drill
the wheel.

Y-Axis Knob X-Axis Knob

ON

Turn

3000. Using the same

Axis Knobs, start to
move the drill into
the grinding wheel
while rotating the
Chuck. This fixture is
meant to re-sharpen
existing drills. During the sharpening process,
should you remove an
material, due to damage, it will be necessary to
re-align the drill and sharpen again. Refer to the
diagram
below for
examples of
proper drill
geometry.

contact the grinding wheel. If it does,

your XT-

OFF

, place the Chuck in the

excessive amount of

OFF

51

Brad Point Attachment

Brad Point Attachment LEX200

SA11790PA

PP11745FF 1/4-20 x 1 SSS
PP11790PF Point angle lock knob

SA16652TA

PP16652TF Feed Bearing Bolt
PP08560LF Feed Bearing

52

STEP DRILL ATTACHMENT

LEX 250

Congratulations on the purchase of your Darex
XT- 3000 Step Drill Attachment. (LEX250). This

attachment consists of 3 pieces, 1 Sharpening
Fixture, SA16950BA, 1 Alignment Fixture,
SA116970XA and a 3mm – 12 mm Chuck,
SA16975TA. (The 12mm – 21mm Chuck,
SA16980TA is available as an optional accessory)
All 3 components are laser marked with a Step
Drill icon to minimize confusion with other XT­3000 attachments.

the XT-3000. Rotate the Docking Lever CW to
secure the X-Y Table to the XT-3000.

X-Axis Knob

Pivot Lock Knob

Y-Axis Knob

In a similar manner, lock the Step Drill Sharpening
Fixture on to the top of the X-Y Table. Secure the
Step Drill Alignment Fixture to the top of the XT-

3000.

SHARPENING THE PILOT

Should the pilot of the step drill need re­sharpened, do so, just as you sharpen a standard
twist drill. Having the exploded view drawing
handy will be beneficial at this point.

SHARPENING THE STEP

SETTING UP:

To sharpen the ‘step’ on your step drill, you will
have to remove the standard sharpening fixture
and replace it with the X-Y Table (LEX100). The
Step Drill Attachment works together with the X-Y
Table.

Rotate the
Docking Lever
CCW to free the
standard
sharpening
fixture, then
remove. Place
the X-Y Table on

ALIGNING THE DRILL:

Place the drill in the chuck and tighten chuck by
rotating the chuck knob CW. Stop just before the
chuck jaws make contact with the drill. Make sure
the drill still slides easily through the chuck. Place
the Chuck in
the Alignment
fixture until
the shoulder
of the chuck
stops against
the
alignment.

53

Rotate the Chuck
until 1 of the
alignment dogs rests
firmly against the
Alignment.
Rotate the Pawl
Locating Cam until
the arrow lines up to
the major diameter
of the drill. As
indicated by the logo
on the Timing Arm,
rotating it will have
an impact on the
amount of relief
ground on the drill. Unless the drill is intended for
a unique material, it is
our recommendation
that it stay in its normal
location. Push the drill
through the chuck until
the pilot starts to pass
through the Alignment.
Slide the Length Setting Pawl until it almost
touches the pilot. Continue to slide the drill
through the chuck until the major diameter stops
against the Length Setting Pawl.

With the XT-3000

OFF,

Slide the chuck into the
Sharpening Fixture making sure the drill is clear of
the grinding wheel. Using both the X and Y axis
knobs, position the drill close to, but not touching
the wheel.

Y-Axis Knob X-Axis Knob

Now, turn your
machine

ON

.
Continue to
position the
drill into the
wheel while
rotating the
chuck.
It will be
necessary to
slightly undercut the pilot of the step drill to
produce a sharp corner at the end of the pilot
and beginning of the step.
Refer to the diagram below.

Rotate the drill CW until the cutting edges align
with the pawls. The drill is now set to length and
oriented to the chuck cam. Tighten the chuck and
remove it from the Alignment.
SETTING UP THE X-Y TABLE:
Utilizing the X-Y Table, the angle ground into the
step portion of the drill can be 90°-180°. Loosen
the Pivot Lock Knob and slide table to the desired
angle. Tighten the knob.

Pivot Lock Knob

54

Once you are satisfied with the results, turn the
cross feed knob with your right hand CCW to
remove the drill from the grinding wheel. Carefully
remove the chuck from Sharpening Fixture. The
sharpening is now complete. During the
sharpening process, should you remove an
excessive amount of material, due to damage, it
will be necessary to re-align the drill and sharpen
again.

Step Drill Attachment

55

Step Drill Attachment SA16950BA

SA16652TA Feed Bearing Assembly

PP16652TF Feed Bearing Bolt
PP08560LF Bearing

SA03413BA Pawl Assembly

PP03440FF 10-24 Nylon hex nut
PP03435FF #10 nylon washer
PP03420TF Pawl Retaining Pin
PP03415TF Pawl Guide Pin
PP03412BF Pawl

SA16975TA

Step Drill 3mm-12mm Chuck

Step Drill 3-12mm Chuck

PP16400TF 3-12mm Body
PP16975TF Step Drill 3-12mm Cam
PP16410TF 3-12mm knob
PP16415TF 3-12mm closing sleeve
PP16420TF 3-12mm closing screw

PP02404SF Thrust Washer
PP16425SF 3-12mm - 12-21mm jaws

PP16442FF snap ring
PP16430TF Jaw guide
PP16435LF 3-12mm Jaw race
PP12560RF 3-12mm jaw springs
PP16440FF Jaw key screw

56

90º - 120º Drill Attachment

LEX300

Congratulations on the purchase of your Darex
XT-3000 90°-120° Sharpening Attachment. As

part of the assembly you should have a
Sharpening fixture (SA16995XA) and Drill Chuck
(SA16890TA) range 3mm to 12mm. (SA016880TA

12mm to 21mm chuck available as optional
accessory.)

By now you are familiar with the ‘quick disconnect’
feature of your
XT-3000. Start
by replacing the
current fixture
with the 90°­120°
attachment.

Set your desired
point angle by
pulling the red
Pivot Lock Lever
(counter
clockwise)
towards the
operator

and
sliding the fixture across the base plate to the

desired point angle.
Lock the fixture by returning the red Pivot Lock
Lever to its orig inal position.

Use the XT-3000
alignment to align the drill
in the same manner that
you are accustomed to.
The Alignment tube should
be positioned at the

mark.

With the red Slide Handle
touching the Alignment
casting, tighten the Chuck
by rotating the Chuck Knob
clockwise.

CORRECT INCORRECT

Remove the Chuck.
Gently slide the Chuck into the Sharpening fixture.

While keeping the Swing Cam in contact with the
Swing Cam Bearing, apply slight pressure into the
Grind wheel and rotate the chuck clockwise. Try
to sharpen the drill in such a manner that the drill
is off the wheel before you reposition you hand on
the Chuck Knob. Grinding time will vary depending
on wheel condition and amount of material
removal but it should require a minimum of 8-10
rotations.

118°

57

90º - 120º Sharpening Attachment

58

90°- 120º Attachment

SA16652TA Feed Bearing Assembly

PP16652TF Feed Bearing Bolt
PP08560LF Bearing

SA16615BA Pivot Lock Lever Assembly

PP16615BF Pivot lock le ver
PP16630FF 5mmX8mm SSS

SA16657TA Swing Bearing Assembly

PP16655LF Swing Bearing
PP16657TF Swing Bearing Bolt

SA16645TA Spring Te nsioner Assembly

PP16645TF Spring Tensioner
PP12280FF M6 x 1 x 8mm SSS

SA16890TA

3-12mm 90° Chuck

PP16400TF 3-12mm body
PP16890TF 90° 3-12 mm Cam
PP16410TF Knob
PP16415TF Closing sleeve
PP16420TF Closing screw
PP02404SF Thrust Washer
PP16425SF Jaws
PP16430TF 3-12mm jaw guide
PP16435LF 3-12mm jaw race
PP12560RF Jaw springs
PP16440FF Jaw key screw

59