Milwaukee 0721-20 User Manual
Cat. No.
No de cat.
0721-20
OPERATOR'S MANUAL
MANUEL de L'UTILISATEUR
MANUAL del OPERADOR
1/2" RIGHT ANGLE DRILL
13 mm (1/2") POIGNÉE COUDEE ANGLE DROIT
TALADROS EN ANGULOS RECTOS, DE 13 mm (1/2") CON EMPUNADURA
EN "D" DE
TO REDUCE THE RISK OF INJURY, USER MUST READ OPERATOR'S MANUAL.
AFIN DE RÉDUIRE LE RISQUE DE BLESSURES, L'UTILISATEUR DOIT LIRE LE
MANUEL DE L'UTILISATEUR.
PARA REDUCIR EL RIESGO DE LESIONES, EL USUARIO DEBE LEER EL MANUAL
DEL OPERADOR.
GENERAL SAFETY RULES-FOR ALL BATTERY OPERATED TOOLS
WARNING
Failure to follow all instructions listed below may result in electric shock, fi re and/or
serious injury. The term "power tool" in all of the warnings listed below refers to your
mains-operated (corded) power tool or battery-operated (cordless) power tool.
SAVE THESE INSTRUCTIONS
READ ALL INSTRUCTIONS
WORK AREA SAFETY
1. Keep work area clean and well lit.
Cluttered or dark areas invite accidents.
2. Do not operate power tools in ex-
plosive atmospheres, such as in the
presence of fl ammable liquids, gases
or dust. Power tools create sparks which
may ignite the dust or fumes.
3. Keep children and bystanders away
while operating a power tool. Distractions can cause you to lose control.
ELECTRICAL SAFETY
4. Power tool plugs must match the
outlet. Never modify the plug in any
way. Do not use any adapter plugs
with earthed (grounded) power tools.
Unmodifi ed plugs and matching outlets
will reduce risk of electric shock.
5. Avoid body contact with earthed or
grounded surfaces such as pipes,
radiators, ranges and refrigerators.
There is an increased risk of electric shock
if your body is earthed or grounded.
6. Do not expose power tools to rain or
wet conditions. Water entering a power
tool will increase the risk of electric
shock.
7. Do not abuse the cord. Never use the
cord for carrying, pulling or unplugging the power tool. Keep cord away
from heat, oil, sharp edges or moving
parts. Damaged or entangled cords
increase the risk of electric shock.
8. When operating a power tool out-
doors, use an extension cord suitable
for outdoor use. Use of a cord suitable
for outdoor use reduces the risk of electric shock.
PERSONAL SAFETY
9. Stay alert, watch what you are do-
ing and use common sense when
operating a power tool. Do not use
a power tool while you are tired or
under the infl uence of drugs, alcohol
or medication. A moment of inattention
while operating power tools may result
in serious personal injury.
10. Use safety equipment. Always wear
eye protection. Safety equipment such
as dust mask, non-skid safety shoes,
hard hat, or hearing protection used
for appropriate conditions will reduce
personal injuries.
11. Avoid accidental starting. Ensure the
switch is in the off-position before
plugging in. Carrying power tools with
your fi nger on the switch or plugging in
power tools that have the switch on invites
accidents.
12. Remove any adjusting key or wrench
before turning the power tool on. A
wrench or a key left attached to a rotating part of the power tool may result in
personal injury.
13. Do not overreach. Keep proper foot-
ing and balance at all times. This
enables better control of the power tool
in unexpected situations.
14. Dress properly. Do not wear loose
clothing or jewellery. Keep your hair,
clothing and gloves away from moving
parts. Loose clothes, jewellery or long hair
can be caught in moving parts.
15. If devices are provided for the connec-
tion of dust extraction and collection
facilities, ensure these are connected
and properly used. Use of these de-
vices can reduce dust-related hazards.
2 3
POWER TOOL USE AND CARE
16. Do not force the power tool. Use the
correct power tool for your application. The correct power tool will do the
job better and safer at the rate for which
it was designed.
17. Do not use the power tool if the switch
does not turn it on and off. Any power tool
that cannot be controlled with the switch is
dangerous and must be repaired.
18. Disconnect the plug from the power
source and/or the battery pack from
the power tool before making any
adjustments, changing accessories,
or storing power tools. Such preven-
tive safety measures reduce the risk of
starting the power tool accidentally.
19. Store idle power tools out of the
reach of children and do not allow
persons unfamiliar with the power
tool or these instructions to operate
the power tool. Power tools are danger-
ous in the hands of untrained users.
20. Maintain power tools. Check for
misalignment or binding of moving
parts, breakage of parts and any
other condition that may affect the
power tool's operation. If damaged,
have the power tool repaired before
use. Many accidents are caused by
poorly maintained power tools.
21. Keep cutting tools sharp and clean.
Properly maintained cutting tools with
sharp cutting edges are less likely to
bind and are easier to control.
22. Use the power tool, accessories and
tool bits etc., in accordance with
these instructions and in the manner
intended for the particular type of
power tool, taking into account the
working conditions and the work to
be performed. Use of the power tool for
operations different from those intended
could result in a hazardous situation.
BA TTER Y T OOL USE AND CARE
23. Ensure the switch is in the off position before inserting battery pack.
Inserting the battery pack into power
tools that have the switch on invites
accidents.
24. Recharge only with the charger speci-
fi ed by the manufacturer. A charger
that is suitable for one type of battery
pack may create a risk of fi re when used
with another battery pack.
25. Use power tools only with specifi cally
designated battery packs. Use of any
other battery packs may create a risk of
injury and fi re.
26. When battery pack is not in use, keep
it away from other metal objects like
paper clips, coins, keys, nails, screws,
or other small metal objects that can
make a connection from one terminal
to another. Shorting the battery terminals
together may cause burns or a fi re.
27. Under abusive conditions, liquid may
be ejected from the battery, avoid
contact. If contact accidentally occurs, fl ush with water. If liquid con-
tacts eyes, additionally seek medical
help. Liquid ejected from the battery
may cause irritation or burns.
SERVICE
28. Have your power tool serviced by a
qualifi ed repair person using only
identical replacement parts. This will
ensure that the safety of the power tool
is maintained.
6. WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other
construction activities contains chemicals known to cause cancer, birth defects or other
reproductive harm. Some examples of these chemicals are:
• lead from lead-based paint
• crystalline silica from bricks and cement and other masonry products, and
• arsenic and chromium from chemically-treated lumber.
Y our risk from these exposures varies, depending on how often you do this type of work.
To reduce your exposure to these chemicals: work in a well ventilated area, and work
with approved safety equipment, such as those dust masks that are specially designed
to fi lter out microscopic particles.
Symbology
Volts Direct
Current
No Load Revolutions
per Minute (RPM)
Specifi cations
SPECIFIC SAFETY RULES
1. Hold tools by insulated gripping sur-
faces when performing an operation
where the cutting tool may contact
hidden wiring or its own cord. Contact
with a "live" wire will make exposed
metal parts of the tool "live" and shock
the operator.
2. Wear ear protectors with impact
drills. Exposure to noise can cause
hearing loss.
3. Use auxiliary handles supplied with
the tool. Loss of control can cause
personal injury.
4. Keep hands away from all cutting
edges and moving parts.
5. Maintain labels and nameplates.
These carry important information.
If unreadable or missing, contact a
MILWAUKEE service facility for a free
replacement.
4 5
Cat. No.
0721-20
1. Handle
2. Forward/Reverse/Trigger lock switch
3. Trigger
4. Right angle drive unit
5. Side handle
Volts
DC
28
5
6
RAD
No load
RPM
Hi 0 - 1000
Lo 0 - 400
FUNCTIONAL DESCRIPTION
4
Flat
Boring
Bits
1-1/2"
1-1/2"
7
Underwriters Laboratories, Inc.,
United States and Canada
Properly Recycle
Lithium-Ion Batteries
Wood
Bit
3/4"
3
Ship
Auger
Bit
1"
1-1/2"
Selfeed
Bit
1"
2-9/16"
2
Auger
Hole
Saw
3-1/2"
4-1/2"
6. Chuck
7. Ring clamp
8. Battery pack
9. Battery pack release buttons
1-1/2"
1
9
8
WARNING
TOOL ASSEMBLY
WARNING
Attaching Right Angle Drive to a Drill
Fig. 2
Removing the Chuck from the RAD
Fig. 3
To reduce the risk of injury, always
lock trigger or remove battery pack
before changing or removing accessories. Only use accessories specifi cally recommended for this tool.
Others may be hazardous.
Fig. 1
Inserting a
battery pack
Removing Battery Pack from Tool
Push in the release buttons and pull the
battery pack away from the tool.
Inserting Battery Pack into Tool
T o insert the battery pack onto the tool, slide
the pack onto the body of the tool. Make sure
it latches securely into place.
Removing a
battery pack
To reduce the risk of injury, always
use a side handle when using this
tool. This tool operates with high
torque. Always brace or hold the tool
securely.
WARNING
When using the D-handle drill without the right angle drive unit, do not
clamp the ring clamp with attached
side handle to the front of the gear
case; use the side handle instead.
Do not use the extension when using
the ring clamp.
Ring Clamp, Extension, and Side Handle
for Right Angle Drive (RAD)
For D-handle drill with RAD:
A ring clamp, extension, and side handle
are supplied with the Right Angle Drive Unit.
When using a right angle drive unit, attach
the side handle to the ring clamp. Do not use
the extension when using the ring clamp. The
ring clamp with attached side handle clamps
onto the right angle drive unit and can swivel
360° and locked tight in any position.
For D-handle drill without RAD:
When using the D-handle drill without the
right angle drive unit, remove the ring clamp
with attached side handle from the RAD, then
remove the side handle from the ring clamp.
Attach the side handle to the extension. The
side handle can be installed on either side of
the tool for right or left handed use. T o install
the extension with attached side handle,
thread it into the socket on the desired side
of the tool (for right or left-handed use) and
tighten securely.
NOTE: If you have an extra ring clamp
with attached side handle and extension
with attached side handle, do not use the
extension with attached side handle when
using the right angle drive unit. Remove it
from the tool.
1
3
2
1. Remove the chuck from the drill following instructions (see “Removing the
Chuck from the Drill”). Slip the double
hex coupling (1) over the hex on the drill
spindle.
Loosen the clamping screws on the
clamping sleeve (2) and slip the sleeve
onto the drill collar.
2. Slide the right angle drill head (3) into
the other side of the sleeve and turn
the drive head slightly in either direction
so the hexagonal hole in the coupling
engages the hexagonal portion of the
spindle.
NOTE: Attaching the drill chuck to the
side designated “low” reduces the speed
by 1/3, or 33%. Attaching the drill chuck
to the opposite side of the right angle
drill head increases the speed by 1/2,
or 50%.
3. When assembled, turn the right angle
head to the desired position and tighten
the clamping screws to secure the
unit. Thread the chuck onto the right
angle drive spindle and install the chuck
screw.
The chuck can be removed from the right
angle drive unit in the same manner it is
removed from the drill; however, ALWAYS
REMOVE RIGHT ANGLE DRIVE FROM
THE DRILL BEFORE ATTEMPTING TO
LOOSEN THE CHUCK. This will prevent
damaging the drill's gearing. Use the open
end wrench provided to hold the right angle
drive spindle before attempting to loosen
Removing the Chuck from the Drill
Fig. 4
1. To remove the left-hand screw inside the
chuck, remove the battery pack from the
tool and open the chuck jaws. Insert a
T-handle hex key into the screw inside
the chuck. Turn the T-handle hex key
and remove the screw. Save the screw
for installing your new chuck.
2. To remove chuck: Tighten a large hex
key into the chuck. Place the chuck on a
workbench as shown. Strike the hex key
with a soft-headed mallet to loosen the
chuck. Remove the chuck by hand.
6 7
OPERATION
WARNING
To reduce the risk of injury, keep
hands away from the bit and all moving parts. Always wear safety goggles
or glasses with side shields. Always
remove the chuck key from the chuck
after each use.
Installing Bits into Keyed Chuck
Fig. 5
Tighten
Loosen
1. Open the chuck jaws wide enough to
insert the bit. Be sure the bit shank
and chuck jaws are clean. Dirt particles
may prevent the bit from lining up
properly.
2. When using drill bits, insert the bit into
the chuck. Center the bit in the chuck
jaws and lift it about 1/16" off of the bottom. Tighten the chuck jaws by hand to
align the bit.
When using screwdriver bits, insert the
bit far enough for the chuck jaws to grip
the bit shank. Tighten the chuck jaws by
hand to align the bit.
3. Place the chuck key in each of the three
holes in the chuck, turning it clockwise
as shown. Tighten securely.
4. To remove the bit, insert the chuck key
into one of the holes in the chuck and
turn it counterclockwise.
Forward/Reverse/Trigger Lock Switch
To set the direction of bit rotation or lock the
trigger, move the forward/reverse/trigger lock
switch to the following positions (Fig. 6):
Fig. 6
For forward rotation (clockwise):Move the
switch to the right." " will be displayed above
the switch. To vary the speed in forward
rotation, increase or decrease pressure on
the trigger.
For reverse rotation (counter-clockwise):
Move the switch to the left. " " will be displayed above the switch. To vary the speed
in reverse rotation, increase or decrease
pressure on the trigger.
To lock the trigger: Move the switch to the
center. " " will be displayed above the switch.
The trigger will not work while the switch is in
the locked position. Always lock the trigger
and remove the battery pack before performing maintenance and changing accessories.
Lock the trigger when storing the tool and
when the tool is not in use.
Starting, Stopping and Controlling
Speed
1. To start the tool, grasp the handle fi rmly
and pull the trigger.
2. To vary the speed, increase or decrease
the pressure on the trigger. The further
the trigger is pulled, the greater the
speed.
3. To stop the tool, release the trigger.
Make sure the tool comes to a complete
stop before laying the tool down.
WARNING
To reduce the risk of personal injury,
hold the tool securely. Brace tools
with side handles as shown (Fig. 7, 8
& 9). If the bit binds, the tool will be
forced in the opposite direction. Bits
may bind if they are misaligned or
when breaking through a hole. Wood
boring bits can also bind if they run
into nails or knots.
Fig. 7
Fig. 8
Forward
rotation
Fig. 9
Reaction
Reverse
rotation
Bracing against a stud
Bracing against your leg
Reaction
Bracing against the fl oor
Reaction
Forward
rotation
Reaction
Forward rotation
Electric Brake
The electric brake engages when the trigger
is released, causing the bit to stop and allowing you to proceed with your work. Generally,
the bit stops within two seconds. However,
there may be a delay between the time
you release the trigger and when the brake
engages. Occasionally the brake may miss
completely. If the brake misses frequently,
the tool needs servicing by an authorized
MILWAUKEE service facility.
Cold Weather Operation
The V28 Lithium-Ion battery pack can be
used in temperatures down to -4°F. When
the battery pack is very cold, it may pulse for
the fi rst minute of use to warm itself up. Put
the battery pack on a tool and use the tool in
a light application. After about a minute, the
pack will have warmed itself up and operate
normally.
APPLICATIONS
Selecting Bits
When selecting a bit, use the right type for
your job. For best performance, always use
sharp bits.
Drilling
1. Before drilling, be sure the workpiece is
clamped securely. Use backing material
to prevent damage to the workpiece during breakthrough.
2. When starting a hole, place the drill bit on
the work surface and apply fi rm pressure.
Begin drilling at a slow speed, gradually
increasing the speed as you drill.
3. Always apply pressure in line with the
bit. Use enough pressure to keep the
drill biting, but do not push hard enough
to stall the motor.
4. Reduce pressure and ease the bit
through the last part of the hole. While
the tool is still running, pull the bit out of
the hole to prevent jamming.
8 9
Drilling in Wood, Composition Materials
and Plastic
When drilling in wood, composition materials
and plastic, start the drill slowly, gradually
increasing speed as you drill. When drilling
into wood, use wood augers or twist drill bits.
Always use sharp bits. When using twist drill
MAINTENANCE
WARNING
To reduce the risk of injury,
always unplug the charger and
remove the battery pack from the
charger or tool before performing
any maintenance. Never disassemble the tool, battery pack or charger.
Contact a MILWAUKEE service facil-
ity for ALL repairs.
Keep your tool, battery pack and charger in good repair by adopting a regular
maintenance program. After six months
to one year, depending on use, return the
tool, battery pack and charger to a
MILWAUKEE service facility for:
• Lubrication
• Mechanical inspection and cleaning
(gears, spindles, bearings, housing,
etc.)
• Electrical inspection (battery pack,
charger, motor)
• T esting to assure proper mechanical and
electrical operation
Maintaining Tool
If the tool does not start or operate at full power with a fully charged battery pack, clean
the contacts on the battery pack. If the tool
still does not work properly, return the tool,
charger and battery pack, to a MILWAUKEE
service facility for repairs.
bits, pull the bit out of the hole frequently to
clear chips from the bit fl utes. To reduce the
chance of splintering, back work with a piece
of scrap wood. Select low speeds for plastics
with a low melting point.
WARNING
To reduce the risk of personal injury
and damage, never immerse your
tool, battery pack or charger in liquid
or allow a liquid to fl ow inside them.
Cleaning
Clean dust and debris from charger and tool
vents. Keep tool handles clean, dry and free
of oil or grease. Use only mild soap and a
damp cloth to clean the tool, battery pack
and charger since certain cleaning agents
and solvents are harmful to plastics and other
insulated parts. Some of these include gasoline, turpentine, lacquer thinner, paint thinner ,
chlorinated cleaning solvents, ammonia and
household detergents containing ammonia.
Never use fl ammable or combustible sol-
vents around tools.
Repairs
For repairs, return the tool, battery pack and
charger to the nearest service center listed on
the back cover of this operator's manual.
ACCESSORIES
WARNING
Always remove battery pack before
changing or removing accessories.
Only use accessories specifi cally
recommended for this tool. Others
may be hazardous.
FIVE YEAR TOOL LIMITED WARRANTY
Every MILWAUKEE electric power tool (including battery charger) is warranted to the original
purchaser only to be free from defects in material and workmanship. Subject to certain exceptions, MILWAUKEE will repair or replace any part on a electric power tool which, after examina-
tion, is determined by MILWAUKEE to be defective in material or workmanship for a period of
fi ve (5) years* after the date of purchase. Return the electric power tool and a copy of proof
of purchase to a MILWAUKEE factory Service/Sales Support Branch location or MILWAUKEE
Authorized Service Station, freight prepaid and insured, are requested for this warranty to be
effective. This warranty does not apply to damage that MILWAUKEE determines to be from
repairs made or attempted by anyone other than MILWAUKEE authorized personnel, misuse,
alterations, abuse, normal wear and tear, lack of maintenance, or accidents.
* The warranty period for Hoists (lever, hand chain, & electric chain hoists), all Ni-CD battery
packs, Work Lights (cordless fl ashlights), Job Site Radios, and Trade Titan™ Industrial W ork
Carts is one (1) year from the date of purchase. *The warranty period for Li-Ion battery packs
that do not contain V™-technology – 4.0 volts through 18.0 volts - is two (2) years from the
date of purchase.
*There is a separate warranty for V™-technology Li-Ion Battery Packs V™18 volts and above
that accompany V™-technology cordless power tools:
*Every MILWAUKEE V™-technology Li-Ion Battery Pack 18 volts or above is covered by an
initial 1000 Charges/2 Years free replacement warranty. This means that for the earlier of
the fi rst 1000 charges or two (2) years from the date of purchase/fi rst charge, a replacement
battery will be provided to the customer for any defective battery free of charge. Thereafter,
customers will also receive an additional warranty on a pro rata basis up to the earlier of the
fi rst 2000 charges or fi ve (5) Years from the date of purchase/fi rst charge. This means that
every customer gets an additional 1000 charges or three (3) years of pro rata warranty on
the V™-technology Li-Ion Battery Pack 18 volts or above depending upon the amount of use.
During this additional warranty period, the customer pays for only the useable service received
over and above the fi rst 1000 Charges/2 years, based on the date of fi rst charge and number
of charges found on the battery pack via Milwaukee’s V™-technology Service Reader.
Warranty Registration is not necessary to obtain the applicable warranty on a MILWAUKEE
product. However, proof of purchase in the form of a sales receipt or other information deemed
suffi cient by MILWAUKEE, is requested.
ACCEPTANCE OF THE EXCLUSIVE REPAIR AND REPLACEMENT REMEDIES DESCRIBED HEREIN IS A CONDITION OF THE CONTRACT FOR THE PURCHASE OF
EVERY MILWAUKEE PRODUCT. IF YOU DO NOT AGREE TO THIS CONDITION, YOU
SHOULD NOT PURCHASE THE PRODUCT. IN NO EVENT SHALL MILWAUKEE BE LIABLE FOR ANY INCIDENTAL, SPECIAL, CONSEQUENTIAL OR PUNITIVE DAMAGES,
OR FOR ANY COSTS, ATTORNEY FEES, EXPENSES, LOSSES OR DELAYS ALLEGED
TO BE AS A CONSEQUENCE OF ANY DAMAGE TO, FAILURE OF, OR DEFECT IN ANY
PRODUCT INCLUDING, BUT NOT LIMITED TO, ANY CLAIMS FOR LOSS OF PROFITS.
THIS WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES OR CONDITIONS, WRITTEN OR ORAL, EXPRESSED OR IMPLIED. WITHOUT LIMITING THE
GENERALITY OF THE FOREGOING, MILWAUKEE DISCLAIMS ANY IMPLIED W ARRANTY
OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE OR PURPOSE, AND ALL
OTHER WARRANTIES.
This warranty applies to product sold in the U.S.A., Canada and Mexico only.
For a complete listing of accessories refer to
your MILWAUKEE Electric Tool catalog or go
on-line to www.milwaukeetool.com. To obtain
a catalog, contact your local distributor or a
service center listed on the back cover of this
operator’s manual.
10 11
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