Drill Master Drill Master 18V 3/8" 67024 Installation manual

18V 3/8” CORDLESS DRILL
67024
SET UP AND OPERATING INSTRUCTIONS
Due to continuing improvements, actual product may differ slightly from the product described herein.
Distributed exclusively by Harbor Freight Tools®.
3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit our website at: http://www.harborfreight.com
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
Copyright©2009 by Harbor Freight Tools®. All rights reserved. No portion of this manual or any artwork
contained herein may be reproduced in any shape or form without the express written consent of
Harbor Freight Tools. Diagrams within this manual may not be drawn proportionally. Due to continuing
improvements, actual product may differ slightly from the product described herein. Tools required for
assembly and service may not be included.
For technical questions or replacement parts, please call 1-800-444-3353.

SKU 67024 For technical questions, please call 1-800-444-3353. Page 2
SAVE THIS MANUAL
Keep this manual for the safety warn-
ings and precautions, assembly, operat-
ing, inspection, maintenance and cleaning
procedures. Write the product’s serial
number in the back of the manual near the
assembly diagram (or month and year of
purchase if product has no number). Keep
this manual and the receipt in a safe and
dry place for future reference.
Safety Alert Symbol and Signal
Words
In this manual, on the labeling,
and all other information provid-
ed with this product:
This is the safety alert
symbol. It is used to alert
you to potential personal
injury hazards. Obey all
safety messages that
follow this symbol to avoid
possible injury or death.
DANGER indicates
a hazardous
situation which, if not
avoided, will result in death or
serious injury.
WARNING
indicates a
hazardous situation which, if
not avoided, could result in
death or serious injury.
CAUTION, used
with the safety
alert symbol, indicates a
hazardous situation which, if
not avoided, could result in
minor or moderate injury.
NOTICE is used to
address practices
not related to personal injury.
CAUTION, without
the safety alert
symbol, is used to address
practices not related to
personal injury.
IMPORTANT SAFETY
INSTRUCTIONS
INSTRUCTIONS PERTAINING
TO A RISK OF FIRE,
ELECTRIC SHOCK, OR
INJURY TO PERSONS
WARNING – When using tools, basic pre-
cautions should always be followed,
including the following:
General Power Tool Safety
Warnings
WARNING Read all safety
warnings and instructions.
Failure to follow the warnings and
instructions may result in electric
shock, re and/or serious injury.
Save all warnings and
instructions for future reference.
The term ″power tool″ in the
warnings refers to your mains-
operated (corded) power tool or
battery-operated (cordless) power
tool.
Work area safety1.
Keep work area clean and well lit.a.
Cluttered or dark areas invite acci-
dents.
Do not operate power tools in ex-b.
plosive atmospheres, such as in

SKU 67024 For technical questions, please call 1-800-444-3353. Page 3
the presence of ammable liquids,
gases or dust. Power tools create
sparks which may ignite the dust or
fumes.
Keep children and bystandersc.
away while operating a power
tool. Distractions can cause you to
lose control.
Electrical safety2.
Do not expose power tools to rain
or wet conditions. Water entering
a power tool will increase the risk of
electric shock.
Personal safety3.
Stay alert, watch what you area.
doing and use common sense
when operating a power tool. Do
not use a power tool while you
are tired or under the inuence of
drugs, alcohol or medication. A
moment of inattention while operat-
ing power tools may result in serious
personal injury.
Use personal protective equip-b.
ment. Always wear eye protec-
tion. Safety equipment such as dust
mask, non-skid safety shoes, hard
hat, or hearing protection used for
appropriate conditions will reduce
personal injuries.
Prevent unintentional starting.c.
Ensure the switch is in the off-
position before connecting to
power source and/or battery pack,
picking up or carrying the tool.
Carrying power tools with your nger
on the switch or energizing power
tools that have the switch on invites
accidents.
Remove any adjusting key ord.
wrench before turning the power
tool on. A wrench or a key left at-
tached to a rotating part of the power
tool may result in personal injury.
Do not overreach. Keep propere.
footing and balance at all times.
This enables better control of the
power tool in unexpected situations.
Dress properly. Do not wearf.
loose clothing or jewelry. Keep
your hair, clothing and gloves
away from moving parts. Loose
clothes, jewelry or long hair can be
caught in moving parts.
Only use safety equipment thatg.
has been approved by an appro-
priate standards agency. Unap-
proved safety equipment may not
provide adequate protection. Eye
protection must be ANSI-approved
and breathing protection must be
NIOSH-approved for the specic
hazards in the work area.
Power tool use and care4.
Do not force the power tool. Usea.
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.
Do not use the power tool if theb.
switch does not turn it on and off.
Any power tool that cannot be con-
trolled with the switch is dangerous
and must be repaired.
Disconnect the plug from thec.
power source and/or the battery
pack from the power tool before
making any adjustments, chang-
ing accessories, or storing power
tools. Such preventive safety mea-
sures reduce the risk of starting the
power tool accidentally.

SKU 67024 For technical questions, please call 1-800-444-3353. Page 4
Store idle power tools out of thed.
reach of children and do not allow
persons unfamiliar with the power
tool or these instructions to oper-
ate the power tool. Power tools are
dangerous in the hands of untrained
users.
Maintain power tools. Check fore.
misalignment or binding of mov-
ing parts, breakage of parts and
any other condition that may af-
fect the power tool’s operation. If
damaged, have the power tool re-
paired before use. Many accidents
are caused by poorly maintained
power tools.
Use the power tool, accessoriesf.
and tool bits etc. in accordance
with these instructions, taking
into account the working condi-
tions and the work to be per-
formed. Use of the power tool
for operations different from those
intended could result in a hazardous
situation.
Battery tool use and care5.
Recharge only with the chargera.
specied by the manufacturer. A
charger that is suitable for one type
of battery pack may create a risk of
re when used with another battery
pack.
Use power tools only with speci-b.
cally designated battery packs.
Use of any other battery packs may
create a risk of injury and re.
When battery pack is not in use,c.
keep it away from other metal ob-
jects, like paper clips, coins, keys,
nails, screws or other small metal
objects, that can make a connec-
tion from one terminal to another.
Shorting the battery terminals to-
gether may cause burns or a re.
Under abusive conditions, liquidd.
may be ejected from the battery;
avoid contact. If contact acciden-
tally occurs, ush with water. If
liquid contacts eyes, additionally
seek medical help. Liquid ejected
from the battery may cause irritation
or burns.
Service6.
Have your power tool serviced by
a qualied repair person using
only identical replacement parts.
This will ensure that the safety of the
power tool is maintained.
Specic Safety Warnings
Maintain labels and nameplates on1.
the tool. These carry important safety
information. If unreadable or miss-
ing, contact Harbor Freight Tools for a
replacement.
Wear ear protectors when using the2.
Drill. Exposure to noise can cause
hearing loss.
Avoid unintentional starting. Prepare3.
to begin work before turning on the
tool.
Do not lay the tool down until it has4.
come to a complete stop. Moving
parts can grab the surface and pull
the tool out of your control.
When using a handheld power tool,5.

both hands to resist starting torque.
Do not handle the Drill with wet6.
hands.

SKU 67024 For technical questions, please call 1-800-444-3353. Page 5
7. The battery charger gets
hot during use. The
charger’s heat can build
up to unsafe levels and

receive adequate ventilation, due to
an electrical fault, or if it is used in a
hot environment.
-
mable surface. Do not obstruct any
vents on the charger. Especially
avoid placing the charger on car-
pets and rugs; they are not only
ammable, but they also obstruct
vents under the charger.
Place the charger on a stable, solid,

stable metal workbench or concrete



smoke detector in the area. Fre-
quently monitor the charger and
battery while charging.
This product is not a toy. Keep it out8.
of reach of children.
People with pacemakers should9.
consult their physician(s) before use.
-
imity to heart pacemaker could cause
pacemaker interference or pacemak-
er failure. In addition, people with
pacemakers should:


on.

avoid electrical shock.
WARNING: Some dust created by10.
power sanding, sawing, grinding, drill-
ing, and other construction activities,
contains chemicals known [to the
State of California] to cause cancer,
birth defects or other reproductive
harm. Some examples of these
chemicals are:

-
ment or other masonry products
-
cally treated lumber
Your risk from these exposures var-
ies, 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

particles. (California Health & Safety
Code § 25249.5, et seq.)
The warnings, precautions, and in-11.
structions discussed in this instruction
manual cannot cover all possible con-
ditions and situations that may occur.
It must be understood by the operator
that common sense and caution are
factors which cannot be built into this
product, but must be supplied by the
operator.
Please refer to the complete safety12.
warnings and instructions detailed in
the instruction manual for the 67029
Charger, which is included with this
Drill, before charging.

SKU 67024 For technical questions, please call 1-800-444-3353. Page 6
Vibration Safety
This tool vibrates during use. Re-
peated or long-term exposure to
vibration may cause temporary or

to the hands, arms and shoulders. To
reduce the risk of vibration-related

Anyone using vibrating tools regu-1.
larly or for an extended period should

then have regular medical check-
ups to ensure medical problems are
not being caused or worsened from
use. Pregnant women or people
who have impaired blood circulation
-
vous system disorders, diabetes, or
Raynaud’s Disease should not use
this tool. If you feel any symptoms
related to vibration (such as tingling,

seek medical advice as soon as pos-
sible.
Do not smoke during use. Nico-2.
tine reduces the blood supply to the


Wear suitable gloves to reduce the3.
vibration effects on the user.
Use tools with the lowest vibration4.
when there is a choice.
Include vibration-free periods each5.
day of work.
Grip tool as lightly as possible (while6.
using both hands and keeping safe

To reduce vibration, maintain the tool7.
as explained in this manual. If any
abnormal vibration occurs, stop use
immediately.
SAVE THESE
INSTRUCTIONS.
Extension Cords
Note: Extension cords must not be used
with this item’s charger.
Symbology
Double Insulated
Canadian Standards Association

V~ Volts Alternating Current
AAmperes
n0xxxx/min. 
(RPM)

SKU 67024 For technical questions, please call 1-800-444-3353. Page 7
FUNCTIONAL DESCRIPTION
Specications
Battery Type NiCd / 18V
Chuck Capacity/
Type 3/8” / Keyless
Speed 0-900 RPM
Torque Settings 24 (Forward and Reverse)
INITIAL TOOL SET UP/
ASSEMBLY
Read the ENTIRE IMPORTANT
SAFETY INFORMATION
section at the beginning of this
manual including all text under
subheadings therein before set
up or use of this product.
Note: For additional information regarding
the parts listed in the following pages,
refer to the Assembly Diagram near
the end of this manual.
UNPACKING
When unpacking, make sure the
item is intact and undamaged. If parts
are missing or broken, call Harbor Freight
Tools at 1-800-444-3353.
INSTRUCTIONS FOR
PUTTING INTO USE
Read the ENTIRE IMPORTANT
SAFETY INFORMATION
section at the beginning of this
manual including all text under
subheadings therein before set
up or use of this product.
TO PREVENT
SERIOUS INJURY
FROM ACCIDENTAL
OPERATION: Turn Tool off
and remove Battery Pack
before assembling or making
any adjustments to the tool.
Note: For additional information regarding
the parts listed in the following pages,
refer to the Assembly Diagram near
the end of this manual.
Functions
OPERATING INSTRUCTIONS
Read the ENTIRE IMPORTANT
SAFETY INFORMATION
section at the beginning of this
manual including all text under
subheadings therein before set
up or use of this product.
Inspect tool before use, looking
for damaged, loose, and
missing parts. If any problems
Chuck
Drill Bits
Trigger

Ring

Knob
Battery
Pack

SKU 67024 For technical questions, please call 1-800-444-3353. Page 8
are found, do not use tool until
repaired.
Tool Set Up
TO PREVENT
SERIOUS INJURY
FROM ACCIDENTAL
OPERATION: Turn tool off and
remove Battery Pack before
performing any inspection,
maintenance, or cleaning
procedures.
TO PREVENT SERIOUS
INJURY: Do not adjust or
tamper with any control or
component in a way not
specically explained within
manual. Improper adjustment
can result in tool failure or
other serious hazards.
Charging
Please refer to the Charger manual1.
for important safety warnings and
proper instructions on charging the
Battery Pack (40).
WARNING!2. Do NOT use a different
Charger or Battery to power this Drill.
General Operating Instructions
Note:1. When tool is not being used
or when battery, drills, or screwdriver
bits are being attached or removed,
slide Direction Selector (38) to its
mid-position to lock Trigger.
Note:2. To change direction of rotation,


This Drill is designed to accept up to3.

well as hex shank screwdriver bits
and bit holder adapters. Do not use

gears/motor may result. Always use


Slide Direction Selector (38) to its4.
mid-position. While holding ring
behind collar of Chuck (2) with one
hand, rotate collar counterclockwise

bit or hex shank of bit/adapter into
Chuck. Turn collar clockwise to hand
tighten (do not use pliers.)
Turn Torque Selector (6) to the de-5.
sired setting and then slide charged
battery pack onto base of tool until
locked into position. Gently pull on
battery to ensure that it is locked
securely. Slide Direction Selector to
right for drilling / fastening or to left
for reversing.
Place one hand over top of housing6.
for greater tool stability. With other

Trigger to activate motor. Use Cylin-


of the housing as alignment guides.
Do not force bit. Excessive force will7.
damage tip and lead to tool failure.
If drill bit becomes stuck, immediately8.
release Trigger allowing tool to come
to complete stop. Slide Direction
Selector to left to its reverse position

9.
when not in use, remove the attach-
ment and the battery pack from the
tool.

SKU 67024 For technical questions, please call 1-800-444-3353. Page 9
Note: Ni-Cd BATTERY MUST BE10.


or open Battery Pack.
MAINTENANCE AND
SERVICING
Procedures not specically
explained in this manual
must be performed only by a
qualied technician.
TO PREVENT
SERIOUS INJURY
FROM ACCIDENTAL
OPERATION: Turn off tool and
remove Battery before
performing any inspection,
maintenance, or cleaning
procedures.
TO PREVENT SERIOUS
INJURY FROM TOOL
FAILURE: Do not use
damaged equipment. If
abnormal noise or vibration
occurs, have the problem
corrected before further use.
Cleaning, Maintenance, and
Lubrication
BEFORE EACH USE,1. inspect the
general condition of the tool. Check
for loose hardware, misalignment or
binding of moving parts, cracked or
broken parts, damaged electrical wir-
ing, and any other condition that may
affect its safe operation.
AFTER USE,2. wipe external surfaces
of the tool with clean cloth.
When storing, always store Impact3.
Wrench in clean, dry and safe loca-
tion out of reach of children.
Troubleshooting
Problem Possible Causes Likely Solutions
Tool will not start. Battery not charged. Charge Battery.
Hammer function not
available.
Selector Ring in drilling position. Slide Selector Ring into hammering position.
Performance
decreases over time.
Accessory dull or damaged. Keep accessories sharp. Replace as needed.
Excessive noise or
rattling.
Internal damage or wear. Have technician service tool.
Overheating. Forcing tool to work too fast.1.
Accessory dull or damaged.2.
Blocked motor housing vents.3.
Allow tool to work at its own rate.1.
Keep cutting accessories sharp. Replace2.
as needed.
Wear ANSI-approved safety goggles and3.
NIOSH-approved dust mask/respirator while
blowing dust out of motor using compressed
air.
Follow all safety precautions whenever diagnosing or servicing the
tool. Disconnect power supply before service.

SKU 67024 For technical questions, please call 1-800-444-3353. Page 10
Part Description Q’ty
1 Chuck screw 1
2 Chuck 1
3 Tapping screw 2
4 Compressing plate 1
5 Positioning spring 1
6 Torque Selector 1
7 Inner threaded ring 1
8 Spring 1
9 Washer 1
10 Ball Ø5 12
11 Snap ring 1
12 Washer 2
13 Ball Ø3 15
14 Gear box 1
15 Gearing ring 1
16 Shaft coat 1
17 Shaft 1
18 Planet gear 3
19 Washer 1
20 Governor box 1
21 Screw 4
22 Removable gear ring 1
23  1
Part Description Q’ty
24 Planet bracket 1
25 Planet gear 3
26 Planet bracket 1
27 Planet gear 3
28 Fixed gear ring 1
29 Washer 1
30 Screw 2
31  1
32 Motor 1
33  1
35 Decoration plate 1
36 Bit holder 2
37 Driver bit 2
38 Direction Selector 1
39 Trigger 1
40 Battery pack 1
41 Right Housing 1
42 Tapping screw ST2.9x16 8
43 Contact plate 1
44 Contact strip 2
45  1
46  1
PARTS LIST
PLEASE READ THE FOLLOWING CAREFULLY


DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT








SKU 67024 For technical questions, please call 1-800-444-3353. Page 11
ASSEMBLY DIAGRAM
Record Product’s Serial Number Here:
Note: If product has no serial number, record month and year of purchase instead.
Note: Some parts are listed and shown for illustration purposes only, and are not avail-
able individually as replacement parts.
Please note: Cylindrical Vial Lever (45) and
Circular Vial Lever (46) not shown.

SKU 67024 For technical questions, please call 1-800-444-3353. Page 12
LIMITED 90 DAY WARRANTY
Harbor Freight Tools Co. makes every effort to assure that its products meet high
quality and durability standards, and warrants to the original purchaser that this prod-
uct is free from defects in materials and workmanship for the period of 90 days from
the date of purchase. This warranty does not apply to damage due directly or indirectly,
to misuse, abuse, negligence or accidents, repairs or alterations outside our facilities,
criminal activity, improper installation, normal wear and tear, or to lack of maintenance.

contingent, special or consequential damages arising from the use of our product. Some
states do not allow the exclusion or limitation of incidental or consequential damages, so
the above limitation of exclusion may not apply to you. THIS WARRANTY IS EXPRESS-


To take advantage of this warranty, the product or part must be returned to us with
transportation charges prepaid. Proof of purchase date and an explanation of the com-
-
ther repair or replace the product at our election or we may elect to refund the purchase
price if we cannot readily and quickly provide you with a replacement. We will return re-
paired products at our expense, but if we determine there is no defect, or that the defect
resulted from causes not within the scope of our warranty, then you must bear the cost
of returning the product.

which vary from state to state.
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • [phone]