DeWalt DW974, DW992, DW994 Instruction Manual

DEWALT Industrial Tool Company, 626 Hanover Pike, P.O. Box 158, Hampstead, MD 21074 Printed in USA (JUN97-CD-1) Form No. 385360

DW974, DW992, DW994 Copyright © 1997

385360/DW974 etc 5/2/02 11:25 AM Page 2

INSTRUCTION MANUAL
GUIDE D’UTILISATION
MANUAL DE INSTRUCCIONES

DW974/DW992/DW994

Cordless Versa Clutch Driver/Drill
Perceuse-tournevis sans fil à embrayage positif Versa Clutch
Taladro/Destornillador Inalámbrico Versa Clutch

INSTRUCTIVO DE OPERACIÓN, CENTROS DE SERVICIO Y PÓLIZA
DE GARANTÍA. ADVERTENCIA: LÉASE ESTE INSTRUCTIVO ANTES
DE USAR EL PRODUCTO.

385360/DW974 etc 5/2/02 11:25 AM Page 3

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English

Important Safety Instructions
(For all tools)

WARNING: When using electric tools, basic safety precautions
should always be followed to reduce risk of fire, electric shock, and
personal injury, including the following:

READ ALL INSTRUCTIONS

• KEEP WORK AREA CLEAN. Cluttered areas and benches invite

injuries.

• CONSIDER WORK AREA ENVIRONMENT.Don’t expose power tools

to rain. Don’t use power tools in damp or wet locations. Keep work area
well lit.

• GUARD AGAINST ELECTRIC SHOCK. Prevent body contact with

grounded surfaces; for example, pipes, radiators, ranges, and
refrigerator enclosures.

• KEEP CHILDREN AWAY. All visitors should be kept away from work

area. Do not let visitors contact tool.

• STORE IDLE TOOLS. When not in use, tools should be stored in dry,

and high or locked-up place — out of reach of children.

• DON’T FORCE TOOL. It will do the job better and safer at the rate for

which it was intended.

• USE RIGHT TOOL. Don’t force small tool or attachment to do the job

of a heavy duty tool. Don’t use tool for purpose not intended; for
example, don’t use circular saw for cutting tree limbs or logs.

• DRESS PROPERLY. Do not wear loose clothing or jewelry. They can

be caught in moving parts. Rubber gloves and non-skid footwear are
recommended when working outdoors. Wear protective hair covering
to contain long hair.

• USE SAFETY GLASSES. Also use face or dustmask if operation is

dusty.

• DON’T ABUSE CORD. Never carry tool by cord or yank it to

disconnect from receptacle. Keep cord from heat, oil, and sharp edges.

• SECURE WORK. Use clamps or a vise to hold work. It’s safer than

using your hand and it frees both hands to operate tool.

IF YOU HAVE ANY QUESTIONS OR COMMENTS ABOUT THIS
OR ANY D

EWALT TOOL, CALL US TOLL FREE AT:

1-800-4-DEWALT (1-800-433-9258)

Cat # Voltage Grip Style Chuck

Capacity

Battery

Pack

RPM

DW974 12.0V

Mid

Rubber

3/8" 0-450/0-1400

DW994 14.4V

Mid

Rubber

1/2"

0-450/0-1400

Hi-Capacity

MID HANDLE RUBBER GRIP

BATTERY
PACK

BIT HOLDER

TORQUE ADJ.
COLLAR

DRIVER/DRILL SELECTOR

GEAR SHIFTER

CHUCK

FWD/REV
CONTROL
BUTTON

DW992 14.4V

Mid

Rubber

3/8"

0-450/0-1400

Hi-Capacity

Hi-Capacity

385360/DW974 etc 5/2/02 11:25 AM Page 4

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English

• DON’T OVERREACH. Keep proper footing and balance at all times.

• MAINTAIN TOOLS WITH CARE. Keep tools sharp and clean for
better and safe performance. Follow instructions for lubricating and
changing accessories. Keep handles dry, clean, and free from oil and
grease.

• DISCONNECT OR LOCK OFF TOOLS when not in use, before
servicing, and when changing accessories, such as blades, bits,
cutters.

• REMOVE ADJUSTING KEY AND WRENCH. Form habit of checking
to see that key and adjusting wrench is removed from tool before
turning it on.

• AVOID UNINTENTIONAL STARTING. Don’t carry tool with finger on
the switch. Be sure the switch is off when charging.

• STAY ALERT. Watch what you are doing. Use common sense. Do
not operate tool when you are tired.

• CHECK DAMAGED PARTS.Before further use of the tool, a guard or
other part that is damaged should be carefully checked to determine
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 by an authorized service center unless otherwise indicated
elsewhere in this instruction manual. Have defective switches replaced
by authorized service center. Do not use tool if switch does not turn it
on and off.

• DO NOT OPERATE portable electric tools near flammable liquids or in
gaseous or explosive atmospheres. Motors in these tools normally
spark, and the sparks might ignite fumes.

• When driving into walls, floors or wherever live electrical wires may be
encountered, DO NOT TOUCH ANY METAL PARTS OF THE TOOL!
Hold the tool only by the insulated grasping surfaces to prevent electric
shock if you drive into a live wire.

SAVE THESE INSTRUCTIONS

FOR FUTURE USE

Important Safety Instructions for Battery
Chargers

• This manual contains important safety and operating instructions.

• Before using charger, read all instructions and cautionary markings on
(1) charger, (2) battery pack, and (3) product using battery pack.

DANGER: 120 volts present at charging terminals. Do not probe with

conductive objects. Danger of electric shock or electrocution.

DANGER: If battery pack case is cracked or damaged, do not insert

into charger. Danger of electric shock or electrocution.

• The charger and battery pack are specifically designed to work
together. DO NOT attempt to charge the battery pack with any
chargers other than the ones in this manual.

• Do not expose charger to rain or snow.

• These chargers are not intended for any uses other than charging
D

EWalt rechargeable batteries. Any other uses may result in risk of fire,

electric shock or electrocution.

• To reduce risk of damage to electric plug and cord, pull by plug rather
than cord when disconnecting charger.

• Make sure cord is located so that it will not be stepped on, tripped over,
or otherwise subjected to damage or stress.

• An extension cord should not be used unless absolutely necessary.
Use of improper extension cord could result in risk of fire, electric
shock, or electrocution.

• An extension cord must have adequate wire size (AWG or American
Wire Gauge) for safety. The smaller the gauge number of the wire, the
greater the capacity of the cable, that is 16 gauge has more capacity
than 18 gauge. When using more than one extension to make up the
total length, be sure each individual extension contains at least the
minimum wire size.

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Important Safety Instructions for Battery
Packs

The battery pack is not fully charged out of the carton! First read the
safety instructions below. Then follow charging notes and
procedures.

READ ALL INSTRUCTIONS.

• Do not incinerate the battery pack even if it is severely damaged or is
completely worn out.The battery pack can explode in a fire.

• A small leakage of liquid from the battery pack cells may occur under
extreme usage or temperature conditions. This does not indicate a
failure. However, if the outer seal is broken and this leakage gets on
your skin:
a. Wash quickly with soap and water.
b. Neutralize with a mild acid such as lemon juice or vinegar.
c. If battery liquid gets into your eyes, flush them with clean water for
a minimum of 10 minutes and seek immediate medical attention.
(Medical note: The liquid is 25-35% solution of potassium hydroxide.)

• Never attempt to open the battery pack for any reason. If the plastic
housing of the battery pack breaks or cracks, immediately discontinue
use and do not recharge.

• Do not carry extra battery packs in aprons, pockets, or tool boxes along
with other metal objects. Battery pack could be short circuited causing
damage to the battery pack and possibly causing severe burns or fire.

• Charge the battery packs only in D

EWalt chargers.

• NOTE: Review and observe all of the “Important Charging Notes” in
the charger instruction section of this manual.

• NOTE: The batteries in your battery pack are the nickel–cadmium
type. Cadmium is considered to be a toxic material by the
Environmental Protection Agency. Before disposing of damaged or
worn out Nickel–Cadmium battery packs, check with your state
Environmental Protection Agency to find out about special restrictions
on the disposal of these battery packs or return them to a D

EWALT

certified service center for recycling.

2

Recommended Minimum AWG Size for Extension Cords

Total Extension Cord Length (feet)
25 50 75 100 125 150 175
Wire Gauge
18 18 16 16 14 14 12

• The charger is ventilated through slots in the top and the bottom of the
housing. Do not place any object on top of charger or place the charger
on a soft surface that might block the ventilation slots and result in
excessive internal heat. Place the charger in a position away from any
heat source.

• Do not operate charger with damaged cord or plug — have them
replaced immediately.

• Do not operate charger if it has received a sharp blow, been dropped,
or otherwise damaged in any way; take it to an authorized service
center.

• Do not disassemble charger; take it to an authorized service center
when service or repair is required. Incorrect reassembly may result in
a risk of electric shock, electrocution or fire.

• To reduce risk of electric shock, unplug charger from outlet before
attempting any cleaning. Removing the battery pack will not reduce
this risk.

• NEVER attempt to connect 2 chargers together.

• DO NOT store or use the tool and battery pack in locations where the
temperature may reach or exceed 105°F (such as outside sheds or
metal buildings in summer).

• The charger is designed to operate on standard household electrical
power (120 Volts). Do not attempt to use it on any other voltage!

English

385360/DW974 etc 5/2/02 11:25 AM Page 2

Battery Packs

Your tool uses a 12.0 Volt or a 14.4 Volt DEWALT battery pack. When
ordering replacement battery packs, be sure to include catalog
number and voltage: (12.0 Volt-DW9071) (14.4 Volt-DW9091 or
DW9092). XR PACK™ Extended Run-Time battery packs deliver
25% more run-time than standard battery packs. NOTE: Y our tool will
accept either standard or Extended Run Time battery packs.
However, be sure to select proper voltage.

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English

• CHARGING

• CHARGED

• DELAY

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15 M

INUTE CHARGER

FLASHING
ON

FAST FLASH•DEFECTIVE PACK

ON

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DW9115
15 MINUTE
CHARGER

DW9104,

DW9106 1 HOUR

CHARGERS

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DANGER:

WARNING:

R

FIG. 1

DW9107

1 HOUR CHARGER

Chargers DW9104, DW9106, DW9107,
DW9115

Your battery can be charged in the DW9104, DW9106, DW9107(1
Hour Chargers),or the DW9115(15 Minute Charger) Be sure to read
all safety instructions before using your charger.

Charging Procedure

These chargers require no adjustment and are designed to be as
easy as possible to operate. Simply place your battery pack into the
receptacle of a plugged in charger (FIG.1) and it will automatically
charge the pack.

DW9104/DW9106/DW9107 (1 HOUR CHARGERS)

1. Plug the charger into an appropriate AC power outlet.

2. Insert the battery pack into the charger, as shown in FIG.1,
making sure the pack is fully seated in the charger. The red
(charging) light will blink continuously indicating that the charging
process has started.

3. The battery pack will be fully charged in about 1 hour. The
completion of charge will be indicated by the red light remaining
ON continuously. The pack is fully charged and may be used at
this time or left in the charger.

DW9115 (15 MINUTE CHARGER)

1. Plug the charger into an appropriate AC power outlet. The charger
will beep twice, the red light will blink and go off.

2. Insert the battery pack into the charger, as shown in FIG. 1,
making sure the pack is fully seated in the charger. The red light
will blink and the charger will beep once indicating the charging
process has started.

3. The battery pack will be fully charged in less than 15 minutes
under most conditions. This will be indicated by the red light
remaining ON and 3 beeps. The pack is fully charged and may
be used at this time or left in the charger.

385360/DW974 etc 5/2/02 11:25 AM Page 3

Weak Battery Packs: (DW9115). The charger can also detect a
weak battery. Such batteries are still usable but should not be
expected to perform as much work. In such cases, about 10 seconds
after battery insertion, the charger will beep rapidly 8 times to indicate
a weak battery condition. The charger will then go on to charge the
battery to the highest capacity possible.

Leaving the battery pack in the charger: The battery pack can be
removed at any time during these charge cycles, but will only be
fully charged if the red light is continuously ON. The charger and
battery pack can be left connected with the red light glowing
indefinitely. The charger will keep the battery pack fresh and fully
charged. A battery pack will slowly lose its charge when kept out of
the charger. If the battery pack has not been kept on maintenance
charge, it may need to be recharged before use. A battery pack may
also slowly lose its charge if left in a charger that is not plugged into
an appropriate AC source.

Trouble Indicators: These chargers are designed to detect certain
problems that can arise with battery packs which would be indicated
by the red light flashing at a fast rate (and continuous beeping for
DW9115). If this occurs, re-insert battery pack. If problem persists, try
a different battery pack to determine if the charger is OK. If the new
pack charges correctly, then the original pack is defective and should
be returned to a service center for recycling. If the new battery pack
elicits the same trouble indication as the original, have charger tested
at an authorized service center.

Equalization Mode (DW9107 only)

When the red light remains ON, the charger has switched to its
"equalize charge" mode which lasts approximately 6 hours, after
which the charger will switch to "maintenance charge" mode.

PROBLEM POWER LINE (DW9107)

When these chargers are used with some portable power sources
such as generators or sources that convert DC to AC, the chargers
may temporarily suspend operation, flashing the red light with two
fast blinks followed by a pause. This indicates the power source is
out of limits.

Installing and Removing the Battery Pack

NOTE: Make sure your battery pack is fully charged.

To install the battery packinto the tool handle, align the base of the
tool with the notch inside the tool’s handle (FIG.2) and slide the
battery pack firmly into the handle until you hear the lock snap into
place as shown in FIG. 3. To remove the battery pack from the tool,
press the release buttons and firmly pull the battery pack out of the
tool handle. Insert it into the charger as described in the charger
section of this manual.

Important Charging Notes

1. Longest life and best performance can be obtained if the battery
pack is charged when the air temperature is between 65°F and
75°F (18°- 24°C). DO NOT charge the battery pack in an air
temperature below +40°F(+4.5°C), or above +105°F (+40.5°C).
This is important and will prevent serious damage to the battery
pack.

2. The charger and battery pack may become warm to touch while
charging. This is a normal condition, and does not indicate a
problem.

4

English

RELEASE BUTTON

FIG. 2

FIG. 3

385360/DW974 etc 5/2/02 11:25 AM Page 4

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English

3. (DW9115) This charger has an internal temperature limit that,
when exceeded, will temporarily stop the full charge current. This
is indicated by the yellow light being ON. The normal charge cycle
will resume when the temperature falls below the preset limit and
will be indicated by the yellow light turning OFF. The charge time
may be extended beyond the normal 15 minutes. Use the charger
in normal room temperatures whenever possible. To prevent
overheating, do not cover the charger and do not charge battery
packs in direct sunlight or near heat sources.

4. If the battery pack does not charge properly — (1) Check current
at receptacle by plugging in a lamp or other appliance, (2) Check
to see if receptacle is connected to a light switch which turns
power off when you turn out the lights. (3) Move charger and
battery pack to a location where the surrounding air temperature
is approximately 65°F - 75°F (18°- 24°C). (4) If charging problems
persist, take or send the tool, battery pack and charger to your
local service center.

5. The battery pack should be recharged when it fails to produce
sufficient power on jobs which were easily done previously. DO
NOT CONTINUE to use under these conditions. Follow the
charging procedure. You may also charge a partially used pack
whenever you desire with no adverse affect on the battery pack.

6. Under certain conditions, with the charger plugged in to the power
supply, the exposed charging contacts inside the charger can be
shorted by foreign material. Foreign materials of a conductive
nature such as, but not limited to, steel wool, aluminum foil, or any
buildup of metallic particles should be kept away from charger
cavities. Always unplug the charger from the power supply when
there is no battery pack in the cavity. Unplug charger before
attempting to clean.

7. Do not freeze or immerse charger in water or any other liquid.

8. WARNING:Don't allow any liquid to get inside charger. Electric
shock may result. T o facilitate the cooling of the battery pack after
use, avoid placing the charger or battery pack in a warm
environment such as in a metal shed, or an uninsulated trailer.

9. CAUTION: Never attempt to open the battery pack for any

reason. If the plastic housing of the battery pack breaks or cracks,
return to a service center for recycling.

Important!

This product is not user servicable. There are no user servicable
parts inside the charger. Servicing at an authorized service center is
required to avoid damage to static sensitive internal components.

READ ALL OF THE INSTRUCTIONS IN THE BATTER Y CHARGER
SECTION OF THIS MANUAL BEFORE ATTEMPTING TO
CHARGE THE BATTERY PACK FOR YOUR TOOL.

Always use correct battery pack (pack supplied with tool or
replacement pack exactly like it.) Never install any other battery pack.
It will ruin your tool and may create a hazardous condition.

Locked

Depress for Reverse

Depress for Forward

FIG. 4

TRIGGER

SWITCH

385360/DW974 etc 5/2/02 11:25 AM Page 5

Variable Speed Switch

To turn the tool on, squeeze the trigger switch. To turn the tool off,
release the trigger switch. Your tool is equipped with a brake. The
chuck will stop as soon as the trigger switch is fully released.

The variable speed switch enables you to select the best speed for
a particular application. The farther you squeeze the trigger, the
faster the tool will operate. Use lower speeds for starting holes
without a centerpunch, drilling in metals or plastics, driving screws
and drilling ceramics, or in any application requiring high torque.
Higher speeds are better for drilling in wood, wood compositions
and for using abrasive and polishing accessories. For maximum tool
life, use variable speed only for starting holes or fasteners.

NOTE: Continuous use in variable speed range is not recommended.
It may damage the switch and should be avoided.

Forward/Reverse Control Button

(FIG. 4) A forward/reverse control button determines the direction of
the tool and also serves as a lock off button. To select forward
rotation, release the trigger switch and depress the forward/reverse
control button on the right side of the tool.To select reverse, depress
the forward/reverse control button on the left side of the tool. The
center position of the control button locks the tool in the off position.
When changing the position of the control button, be sure the trigger
is released. NOTE: The first time the tool is run after changing the
direction of rotation, you may hear a click on start up. This is normal
and does not indicate a problem.

Torque Adjustment Collar

The Versa Clutch feature of your Driver/Drill is an adjustable torque
screwdriver mechanism for driving and removing a wide array of
fastener shapes and sizes. The Versa Clutch allows you to
instantaneously regulate the torque, based on the force applied.

Circling the collar are numbers ranging from 0 to 11. These numbers
(and half numbers designated by dots on the collar) are used to set
the clutch to deliver a torque range. The higher the number on the

6

English

4

3

2

5

collar, the higher the torque and the larger the fastener which can be
driven. T o select any of the numbers, rotate until the desired number
aligns with the selector, shown in FIG. 5.

Dual Range Gearing

The dual range feature of your Driver/Drill allows you to shift gears for
greater versatility. To select the low speed, high torque setting
(position 1), turn the tool off and permit to stop. Push the button
forward towards the chuck, as shown in FIG. 5. To select the high
speed, low torque setting (position 2), turn the tool off and permit to
stop. Slide the gear shifter back (away from chuck).

NOTE: Do not change gears when the tool is running. If you are
having trouble changing gears, make sure that the dual range gear
button is either completely pushed forward or completely pushed
back.

Clutch Lock

To lock the clutch for drilling operations, simply move the Driver/Drill

3

2

4

FIG. 5

TORQUE

ADJUSTMENT

COLLAR

DUAL RANGE

GEAR

SHIFTER

DRIVER/DRILL

SELECTOR

FIG. 6

385360/DW974 etc 5/2/02 11:25 AM Page 6

7

English

selector to the "Drill" position as described under “Operation as a
Drill.” (You may shift the Driver/Drill selector regardless of the
adjustment collar setting.)

Since the adjustment collar and the Driver/Drill selector are distinctly
different controls, you can switch between drilling and screwdriving
without touching the adjustment collar. Once the collar is set, it
remains unchanged until you decide to change it.

Keyless Chuck

Your tool features a keyless chuck for greater convenience. To insert
a drill bit or other accessory, follow the steps listed below.

1. Lock the trigger switch in the off position as described on page 6.

2. Grasp the rear half of the chuck with one hand and use your other
hand to rotate the front half counterclockwise, as shown in FIG 6.
Rotate far enough so that the chuck opens sufficiently to accept
the desired accessory.

3. Insert the bit or other accessory about 3/4” into the chuck and
tighten securely by holding the rear half of the chuck and rotating
the front portion in the clockwise direction.

To release the accessory, repeat step 2 listed above.

WARNING: Do not attempt to tighten drill bits (or any other
accessory) by gripping the front part of the chuck and turning the tool
on. Damage to the chuck and personal injury may result. Always lock
off trigger switch when changing accessories.

Be sure to tighten chuck with two hands on both the rear sleeve and
the forward sleeve for maximum tightness.

Chuck Removal

Always wear eye protection.

Turn the adjustment collar to the “drill” position and low speed gear
shifter position 1. Tighten the chuck around the shorter end of a hex
key (not supplied) of 1/4” or greater size. Using a wooden mallet or
similar object, strike the longer end in the clockwise direction, as

shown in FIG. 7. This will loosen the screw inside the chuck.
Open chuck jaws fully, insert screwdriver (or Torx tool if required) into

front of chuck between jaws to engage screw head. Remove screw
by turning clockwise (left-hand-thread). Place hex key in chuck and
tighten, as shown in FIG. 8. Using a wooden mallet or similar object,
strike key sharply in the counterclockwise direction. This will loosen
the chuck so that it can be unscrewed by hand.

Chuck Installation

Screw the chuck on by hand as far as it will go and insert screw (LH
thread). Tighten screw securely. Tighten the chuck around the shorter
end of a 1/4” or larger hex key (not supplied) strike the longer end in the
clockwise direction with a wooden mallet, as shown in FIG. 7. Tighten the
screw once again by turning in a counterclockwise direction.

Operation as a Drill

Turn the collar to the drill bit symbol. Install and tighten the desired
drill bit in the chuck. Select the desired speed/torque range using
the dual range gear shifter to match the speed and torque to the
planned operation. Follow these instructions for best results when drilling.

DRILLING

1. Use sharp drill bits only. For WOOD, use twist drill bits, spade bits,
power auger bits, or hole saws. For METAL, use high speed steel twist
drill bits or hole saws. For MASONRY, such as brick, cement, cinder

4

3

2

1

5

6

4

3

2

1

5

6

FIG. 8

FIG. 7

385360/DW974 etc 5/2/02 11:25 AM Page 7

flow of dust indicates the proper drilling rate.

Operation as a Screwdriver

Turn the Driver/Drill selector to the symbol of a screw. Select the desired
speed/torque range using the dual range gear shifter on the top of tool to
match the speed and torque to the planned operation. Insert the desired
fastener accessory into the chuck as you would any drill bit. Make a few
practice runs in scrap or unseen areas to determine the proper position of
the clutch collar.

Pressure Activated Chuck

When in the screwdriving mode, THE CHUCK WILL NOT TURN
UNTIL PRESSURE IS APPLIED IN LINE WITH THE FASTENER.

Likewise, the chuck stops when pressure is released. This pressure
activated chuck feature improves accuracy of work and significantly
increases the rate at which screws can be driven.

Maintenance

CLEANING: With the motor running, blow dirt and dust out of all air
vents with dry air at least once a week. Wear safety glasses when
performing this. Exterior plastic parts may be cleaned with a damp
cloth and mild detergent. Although these parts are highly solvent
resistant, NEVER use solvents.

Charger Cleaning Instructions:

WARNING: Disconnect the charger from the AC outlet before

cleaning.
Dirt and grease may be removed from the exterior of the charger

using a cloth or soft non-metallic brush. Do not use water or any
cleaning solutions.

Accessories

Recommended accessories for use with your tool are available at
extra cost from your local service center.

CAUTION: The use of any non-recommended accessory may be

hazardous.

8

English

block, etc., use carbide-tipped bits.

2. Be sure the material to be drilled is anchored or clamped firmly. If
drilling thin material, use a “back-up” block to prevent damage to the
material.

3. Always apply pressure in a straight line with the bit. Use enough
pressure to keep the drill bit biting, but do not push hard enough to
stall the motor or deflect the bit.

4. Hold tool firmly to control the twisting action of the drill.

5. IF DRILL STALLS, it is usually because it is being overloaded.
RELEASE TRIGGER IMMEDIATELY, remove drill bit from work, and
determine cause of stalling. DO NOT CLICK TRIGGER OFF AND ON
IN AN ATTEMPT TO START A STALLED DRILL – THIS CAN
DAMAGE THE DRILL.

6. To minimize stalling or breaking through the material, reduce pressure
on drill and ease the bit through the last fractional part of the hole.

7. Keep the motor running when pulling the bit back out of a drilled hole.
This will help prevent jamming.

8. With variable speed drills there is no need to center punch the point to
be drilled. Use a slow speed to start the hole and accelerate by
squeezing the trigger harder when the hole is deep enough to drill
without the bit skipping out. Operate at full on after starting the bit.

Drilling in Wood

Holes in wood can be made with the same twist drills used for metal.
These bits may overheat unless pulled out frequently to clear chips from
the flutes. For larger holes, use low speed wood bits. Work that is likely to
splinter should be backed up with a block of wood.

Drilling in Metals

Use a cutting lubricant when drilling metals. The exceptions are cast iron
and brass which should be drilled dry. The cutting lubricants that work best
are sulphurized cutting oil or lard oil; bacon grease will also serve the
purpose.

Drilling Masonry

Use carbide tipped masonry bits at low speeds. Keep even force on the
drill but not so much that you crack the brittle materials. A smooth, even

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