For technical questions or replacement parts, please call 1-800-444-3353.
Page 2
SAVE THIS MANUAL
Keep this manual for the safety warnings
and precautions, assembly, operating,
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.
IMPORTANT SAFETY
INFORMATION
In this manual, on the labeling, and
all other information provided 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.
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.
1. Work area safety
a. Keep work area clean and well lit.
Cluttered or dark areas invite accidents.
b. Do not operate power tools in
explosive atmospheres, such as in
the presence of ammable liquids,
gases or dust. Power tools create
sparks which may ignite the dust
or fumes.
c. Keep children and bystanders
away while operating a power
tool. Distractions can cause you to
lose control.
2. Electrical safety
a. Power tool plugs must match the
outlet. Never modify the plug in
any way. Do not use any adapter
plugs with grounded power tools.
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.
e. When operating a power tool
outdoors, use an extension cord
suitable for outdoor use. Use of a
cord suitable for outdoor use reduces
the risk of electric shock.
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.
d. 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.
e. Do not overreach. Keep proper
footing and balance at all times. This
enables better control of the power tool
in unexpected situations.
f. Dress properly. Do not wear 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.
f. If operating a power tool in a damp
location is unavoidable, use a
Ground Fault Circuit Interrupter
(GFCI) protected supply. Use of a
GFCI reduces the risk of electric shock.
3. Personal safety
a. Stay alert, watch what you are
doing and use common sense when
operating a power tool. Do not use
a power tool while you are tired or
under the inuence of drugs, alcohol
or medication. A moment of inattention
while operating power tools may result
in serious personal injury.
b. Use personal protective 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.
g. If devices are provided for the
connection of dust extraction and
collection facilities, ensure these
are connected and properly used.
Use of these devices can reduce dustrelated hazards.
h. Only use safety equipment that has
been approved by an appropriate
standards agency. Unapproved
safety equipment may not provide
adequate protection. Eye protection
must be ANSI-approved and breathing
protection must be NIOSH-approved for
the specic hazards in the work area.
4. Power tool use and care
a. 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.
c. Prevent unintentional starting.
Ensure the switch is in the offposition before connecting to power
source and/or battery pack, picking
power source and/or the battery
pack from the power tool before
making any adjustments, changing
accessories, or storing power tools.
Such preventive safety measures
reduce the risk of starting the power
tool accidentally.
d. 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 dangerous in the hands of
untrained users.
Drill and Impact Drill Safety
Warnings
1. Wear ear protectors with impact
drills. Exposure to noise can cause
hearing loss.
2. Use Auxiliary Handle (4) supplied
with the Drill. Loss of control can cause
personal injury.
3. Hold power tools by insulated
gripping surfaces 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.
e. 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.
f. Keep cutting tools sharp and clean.
Properly maintained cutting tools with
sharp cutting edges are less likely to
bind and are easier to control.
g. Use the power tool, accessories
and tool bits etc. in accordance
with these instructions, 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.
4. Maintain labels and nameplates on
the tool. These carry important safety
information. If unreadable or missing,
contact Harbor Freight Tools for
a replacement.
5. Avoid unintentional starting. Prepare to
begin work before turning on the tool.
6. Do not lay the tool down until it has come
to a complete stop. Moving parts can
grab the surface and pull the tool out of
your control.
7. When using a handheld power tool,
maintain a rm grip on the tool with both
hands to resist starting torque.
8. Do not leave the tool unattended when
it is plugged into an electrical outlet.
Turn off the tool, and unplug it from its
electrical outlet before leaving.
9. This product is not a toy. Keep it out of
reach of children.
10. People with pacemakers should
consult their physician(s) before use.
Electromagnetic elds in close proximity
to heart pacemaker could cause
Page 5
pacemaker interference or pacemaker
failure. In addition, people with
pacemakers should:
• Avoid operating alone.
• Do not use with power switch
locked on.
• Properly maintain and inspect to avoid
electrical shock.
• Any power cord must be properly
grounded. Ground Fault Circuit
Interrupter (GFCI) should also be
implemented – it prevents sustained
electrical shock.
11. WARNING: Some dust created by power
sanding, sawing, grinding, drilling, 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:
• Lead from lead-based paints
• Crystalline silica from bricks and
cement or other masonry products
• Arsenic and chromium from chemically
treated lumber
Your 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 lter out
microscopic particles. (California Health
& Safety Code § 25249.5, et seq.)
conditions 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.
Vibration Safety
This tool vibrates during use. Repeated
or long-term exposure to vibration may
cause temporary or permanent physical
injury, particularly to the hands, arms
and shoulders. To reduce the risk of
vibration-related injury:
1. Anyone using vibrating tools regularly
or for an extended period should rst
be examined by a doctor and 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 to the hand, past hand
injuries, nervous system disorders,
diabetes, or Raynaud’s Disease
should not use this tool. If you feel any
symptoms related to vibration (such as
tingling, numbness, and white or blue
ngers), seek medical advice as soon
as possible.
2. Do not smoke during use. Nicotine
reduces the blood supply to the hands
and ngers, increasing the risk of
vibration-related injury.
12. WARNING: Handling the cord on this
product will expose you to lead, a
chemical known to the State of California
to cause cancer, and birth defects or
other reproductive harm. Wash hands
after handling. (California Health &
Safety Code § 25249.5, et seq.)
13. The warnings, precautions, and
instructions discussed in this instruction
manual cannot cover all possible
3. Wear suitable gloves to reduce the
vibration effects on the user.
4. Use tools with the lowest vibration when
there is a choice.
5. Include vibration-free periods each day
of work.
7. To reduce vibration, maintain the
tool as explained in this manual. If
any abnormal vibration occurs, stop
use immediately.
SAVE THESE
INSTRUCTIONS.
GROUNDING
TO PREVENT
ELECTRIC SHOCK
AND DEATH FROM INCORRECT
GROUNDING WIRE
CONNECTION:
Check with a qualied electrician
if you are in doubt as to whether
the outlet is properly grounded.
Do not modify the power cord
plug provided with the tool.
Never remove the grounding
prong from the plug. Do not use
the tool if the power cord or plug
is damaged. If damaged, have it
repaired by a service facility
before use. If the plug will not t
the outlet, have a proper outlet
installed by a qualied
electrician.
Double Insulated Tools: Tools with
Two Prong Plugs
1. Tools marked “Double Insulated” do not
require grounding. They have a special
double insulation system which satises
OSHA requirements and complies with
the applicable standards of Underwriters
Laboratories, Inc., the Canadian
Standard Association, and the National
Electrical Code.
2. Double insulated tools may be used in
either of the 120 volt outlets shown in the
preceding illustration. (See Outlets for
2-Prong Plug.)
Extension Cords
1. Grounded tools require a three wire
extension cord. Double Insulated
tools can use either a two or three wire
extension cord.
2. As the distance from the supply outlet
increases, you must use a heavier gauge
extension cord. Using extension cords
with inadequately sized wire causes a
serious drop in voltage, resulting in loss
of power and possible tool damage.
(See Table A.)
3. The smaller the gauge number of the
wire, the greater the capacity of the cord.
For example, a 14 gauge cord can carry
a higher current than a 16 gauge cord.
(See Table A.)
4. When using more than one extension
cord to make up the total length, make
sure each cord contains at least the
minimum wire size required. (See
Table A.)
5. If you are using one extension cord for
more than one tool, add the nameplate
amperes and use the sum to determine
1/2” in Steel
5/8” in Masonry
1” in Wood
(Hammer Drill and Drill mode)
1/16” to 1/2”
Three Jaw Key Type
UNPACKING
When unpacking, make sure that the
item is intact and undamaged. If any parts
are missing or broken, please call Harbor
Freight Tools at 1-800-444-3353 as soon
as possible.
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.
Assembly
Depth Gauge (45)
Chuck (3)
Figure 1
1. Loosen the grip on the Side Handle
(46) and slide Side Handle clamp over
and behind the Chuck (3) until it is set
against housing.
2. Rotate the Side Handle until it is in
desired orientation. If you are right-
handed, position the Side Handle so it
extends from the left of the housing, as
shown Figure 1 above.
3. Rotate Side Handle clockwise to secure
the clamp.
Side
Handle (46)
Power Cord (35)
Key Holder
TO PREVENT
SERIOUS INJURY
FROM ACCIDENTAL
OPERATION: Turn the Trigger
(32) off and unplug the tool from
its electrical outlet 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
4. To install the Depth Gauge (45), loosen
the Side Handle and slide the Depth
Gauge into the gauge hole. See Figure
1, above.
5. Set Depth Gauge to required depth and
retighten grip to fasten Depth Gauge
into place (read further explanation
under General Operating Instructions).
SAFETY INFORMATION
section at the beginning of this
manual including all text under
subheadings therein before set up
or use of this product.
3. If possible, secure loose work pieces
using a vise or clamps (not included)
to prevent movement while working, if
possible.
4. There must not be objects, such as utility
lines, nearby that will present a hazard
while working.
Tool Set Up
TO PREVENT
SERIOUS INJURY
FROM ACCIDENTAL
OPERATION: Turn Tool off,
unplug from its electrical outlet
and remove Drill Chuck Key
before adjusting tool or installing
accessories.
The Hammer Drill is equipped with a
keyed Chuck. Follow these steps to insert bit:
1. Insert Chuck Key (2) into the Chuck and
turn counterclockwise to open the Chuck.
2. Insert the hammer bit or the drill bit (not
included) all the way into the Chuck.
3. Turn the Chuck Key clockwise to tighten
the Chuck on the bit. When not in use,
the Key can be stored in the key holder
on the Power Cord (35).
Work Piece and Work Area Set Up
1. Designate a work area that is clean and
well-lit. The work area must not allow
access by children or pets to prevent
distraction and injury.
General Operating Instructions
1. Plug Power Cord into a working outlet.
2. Set Direction Switch (40) to correct
position. For clockwise (forward) rotation,
push it from left side (Switch surface is
marked with “R”). See Figure 2, below.
3. To rotate Chuck in a counterclockwise
(reverse) direction, push it from the left
side (Switch surface is marked with “L”).
WARNING! Do not change rotation
direction while the Chuck is rotating.
Direction
Switch (40)
Speed Control Knob
Figure 2
Figure 2
Trigger (32)
Trigger
Lock
Button
2. Route the power cord along a safe
path to reach the work area without
creating a tripping hazard or exposing
the power cord to possible damage. The
power cord must reach the work area
with enough extra length to allow free
movement while working.
4. Verify bit is securely locked in Chuck.
5. Press Trigger to activate. Obeserve
rotating bit, making sure it does not
wobble. If it does, back off Chuck and
reposition the bit.
6. To adjust the drilling speed, rotate
the speed control knob located in the
center of the Trigger. Turn clockwise to
increase speed and counterclockwise to
decrease speed. See Figure 2.
7. For continuous drilling, press Trigger,
then Trigger lock button on side of
handle, and release Trigger. To release
lock, depress Trigger. See Figure 2.
8. WARNING! Use both hands during use.
9. Use the Depth Gauge for controlled
depth drilling. The Depth Gauge has two
sets of markings on opposite ends of the
gauge. One is in half inch increments
and the other in one-centimeter
increments (increments are not precise
values, only general guides).
10. Insert bit and tighten Chuck. Loosen
Side Handle, place tip of bit against solid
surface and extend Depth Gauge until
it is against same surface. Determine
required hole-depth and retract Gauge
accordingly. Tighten Side Handle.
materials. Do not drill or hammer
drill hard materials such as steel or
concrete with Lock Button pressed
(ON). If drill bit catches on material, the
high torque will cause the tool to twist
around without stopping. This violent
action could cause injury to your hands
and arms. It could also damage the
Hammer Drill.
13. To prevent accidents, turn off the tool
and disconnect its power supply after
use. Clean, then store the tool indoors
out of children’s reach.
Metal Drilling Tips
1. Use high speed steel, carbide or
specialty bits for metal drilling.
2. Secure work piece to keep it from
moving during the drilling operation.
3. Use a center punch (not included) to
create a dimple for the bit to start.
4. Remove Key from Chuck.
11. To switch between plain drilling and
hammering mode (drilling with an
oscillating hammer motion), slide the
Mode Selector (26) to left or right. The
“drill” symbol indicates plain drilling while
the “hammer” symbol indicates hammer
drilling. See Figure 3.
Hammer symbol
Mode
Selector (26)
(Top View)
Drill symbol
Figure 3
12.
WARNING! Use this continuous drill
function ONLY when drilling soft
5. Start by drilling slowly to keep bit from
wandering/skating away from your
starting point.
6. As hole is established, increase speed.
Do not use so much pressure that bit
heats up. This can damage bit and
create irregular hole. For hard metal, use
cutting oil to keep bit cool.
7. When drilling large holes in metal, start
by drilling a smaller pilot hole, then using
a larger bit for the nal size hole.
Wood Drilling Tips
1. Use high speed bits or bits specially
designed for wood drilling, such as brad
point, spade bits, forstner bits, etc.
2. Secure work piece to keep it from
moving during the drilling operation.
explained in this manual
must be performed only by a
qualied technician.
TO PREVENT
SERIOUS INJURY
FROM ACCIDENTAL
OPERATION: Turn the Trigger
off and unplug the tool from
its electrical outlet before
performing any inspection,
maintenance, or any
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.
WARNING! If the supply cord
of this power tool is damaged, it
must be replaced only by a qualied
service technician.
Cleaning, Maintenance, and
Lubrication
1. BEFORE EACH USE, inspect the
general condition of the tool. Check for
loose hardware, misalignment or binding
of moving parts, cracked or broken
parts, damaged electrical wiring, and
any other condition that may affect its
safe operation.
2. AFTER USE, wipe the tool with a
clean cloth.
3. PERIODICALLY, and after each
prolonged and extensive application,
blow compressed air into the
motor housing slots to remove any
accumulated dirt and debris.
3. Internal damage or wear. (Carbon
brushes or switch.)
Tool operates
slowly.
Performance
decreases over
time.
Excessive noise
or rattling.
Overheating.1. Forcing tool to work too fast.
Extension cord too long or wire size too
small.
1. Accessory dull or damaged.
2. Carbon brushes worn or damaged.
Internal damage or wear. (Carbon
brushes or bearings, for example.)
2. Bit dull or damaged.
3. Blocked motor housing vents.
4. Motor being strained by long or small
diameter extension cord.
5. Improper internal parts lubrication.
1. Check that cord is plugged in.
2. Check power at outlet. If outlet is unpowered,
turn off tool and check circuit breaker. If breaker
is tripped, make sure circuit is right capacity for
tool and circuit has no other loads.
3. Have technician service tool.
Eliminate use of extension cord. If an extension
cord is needed, use shorter/heavier gauge cord.
See Extension Cords in GROUNDING section.
1. Keep cutting accessories sharp. Replace
as needed.
2. Have qualied technician replace brushes.
Have technician service tool.
1. Allow tool to work at its own rate.
2. Keep bit sharp. Replace as needed.
3. Wear ANSI-approved safety goggles and NIOSH-
approved dust mask/respirator while blowing dust
out of motor using compressed air.
4. Eliminate use of extension cord. If an extension
cord is needed, use one with the proper diameter
for its length and load. See Extension Cords in
GROUNDING section.
5. Have a qualied technician service the tool using
ONLY white lithium grease.
Follow all safety precautions whenever diagnosing or servicing the tool.
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY
DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR
DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE
OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT, OR THAT HE OR SHE IS QUALIFIED
TO REPLACE ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR
EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY
CERTIFIED AND LICENSED TECHNICIANS, AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK
AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT
PARTS THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.
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 product 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. We shall in no event be liable for death,
injuries to persons or property, or for incidental, 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 EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, EXPRESS
OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS.
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 complaint
must accompany the merchandise. If our inspection veries the defect, we will either 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 repaired 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.
This warranty gives you specic legal rights and you may also have other rights which
vary from state to state.
3491 Mission Oaks Blvd. • PO Box 6009 Camarillo, CA 93011 • (800) 444-3353