
Operator's ManuaJ
®
C3 1/4" iMPACT DRIVER
Model No. 5727.1
* WARRANTY
®
LISTED
_WARNING: To reduce the risk of injury,
the user must read and understand the
Operator's Manual before using this product.
Sears Brands Management Corporation, Hoffman Estates,
IL 60179 U.S.A.
www, craftsman,com
* SAFETY
* DESCRiPTiON
* ASSEMBLY
* OPERATION
* MAINTENANCE
* ESPANOL

Warranty Page 2
Safety Symbols Pages 4-5
Safety Instructions Pages 6-8
Description Pages 9-10
Assembly Page 10
Operation Pages 11-14
Maintenance Page 15
Troubleshooting Page 15
Parts List Pages 16-17
CRAFTSMAN LiMiTED WARRANTY
FOR ONE YEAR from the date of sale, this product is warranted against any
defects in material or workmanship.
WITH PROOF OF SALE, a defective product will be replaced free of charge.
For warranty coverage details to obtain free replacement, visit the web
page: www.craftsman.com/warranty
This warranty does not cover the bit, which is an expendable part that can
wear out from normal use within the warranty period.
This ONE YEAR warranty is void if this product is ever used while providing
commercial services or if rented to another person. For 90 DAY commercial
and rental use terms, see the Craftsman warranty web page.
This warranty gives you specific legal rights, and you may also have other
rights which vary from state to state.
Sears Brands Management Corporation, Hoffman Estates, IL 60179.
SAVE THESE INSTRUCTIONS!
READ ALL INSTRUCTIONS!
This impact driver has many features for making its use more pleasant and
enjoyable. Safety, performance, and dependability have been given top priority
in the design of this product making it easy to maintain and operate.
2 © Sears Brands, LLC

,_, DANGER: People with electronic devices, such as pacemakers, should
consult their physician(s) before using this product. Operation of electrical
equipment in close proximity to a heart pacemaker could cause interference or
failure of the pacemaker.
_,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 and other masonry products, and
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 chemicah work in a well ventilated
area, and work with approved safety equipment, such as those dust masks that
are specially designed to filter out microscopic particles.

Thepurposeofsafetysymbolsistoattractyourattentiontopossibledangers.
Thesafetysymbolsandtheexplanationswiththemdeserveyourcareful
attentionandunderstanding.Thesymbolwarningsdonot,bythemselves,
eliminateanydanger.Theinstructionsandwarningstheygivearenosubstitutes
forproperaccidentpreventionmeasures.
,_, WARNING: Be sure to read and understand all safety instructions in this
manual, including all safety alert symbols such as "DANGER," "WARNING," and
"CAUTION" before using this tool. Failure to follow all instructions listed in this
manual may result in electric shock, fire, and/or serious personal injury.
SYMBOL SIGNAL MEANING
SAFETY ALERT SYMBOL: indicates DANGER, WARNING, or CAUTION; may
be used in conjunction with other symbols or pictographs.
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: Indicates a hazardous situation which, if not avoided, could
result in minor or moderate injury.
Damage prevention and Information Messages
These inform the user of important information and/or instructions that could
Beadto equipment or other property damage if they are not followed. Each
message is preceded by the word "NOTICE", as in the example below.
NOTICE: Equipment and/or property damage may result if these instructions are
not followed.
_WARNING: To ensure safety and reliability, all repairs should be performed
by a qualified service technician.
WARNING: The operation of any power tools can result in
foreign objects being thrown into your eyes, which can result
in severe eye damage. Before beginning power tool operation,
always wear safety goggles or safety glasses with side shield
and a full face shield when needed. We recommend a Wide
Vision Safety Mask for use over eyeglasses or standard safety
glasses with side shields. Always use eye protection which is
marked to comply with ANSI Z87.1.

SAVE THESE iNSTRUCTiONS
Some of these following symbols may be used on this tool. Please study them
and Beam their meaning. Proper interpretation of these symbols will allow you to
operate the tool better and more safely.
SYMBOL NAME DESIGNATION/EXPLANATION
V Volts Voltage
A Amperes Current
Hz Hertz Frequency (cycles per second)
W Watt Power
min Minutes Time
Alternating Current Type of current
Direct Current Type or a characteristic of current
n O No-load Speed Rotational speed, at no load
[] Class II Construction Double-insulated construction
.../min Per Minute Revolutions, strokes, surface speed,
Wet Conditions Alert Do not expose to rain or use in damp
Read The Operator's Manual read and understand operator's manual
O Always wear safety goggles or safety
Eye Protection glasses with side shields and a fulI face
Safety your safety.
Alert Precautions that involve
No=Hands Symbol Failure to keep your hands away from theblade will result in serious personal injury.
No=Hands Failure to keep your hands away from the
No-Hands Failure to keep your hands away from the
No-Hands Symbol Failure to keep your hands away from the
Symbol
Symbol
orbits, etc., per minute
locations.
To reduce the risk of injury, user must
before using this product.
shield when operating this product.
blade will result in serious personal injury.
blade will result in serious personal injury.
blade will result in serious personal injury.
Hot Surface To reduce the risk of injury or damage,
avoid contact with any hot surface.
5

GENERAL POWER TOOL SAFETY WARNINGS
,_ WARNING: Read aft safety warnings and instructions. Failure to follow the
warnings and instructions may result in electric shock, fire 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 SAFETY
• Keep work area clean and well lit. Cluttered or dark areas invite accidents.
• Do not operate power tools in explosive atmospheres, such as in the
presence of flammable liquids, gases or dust. Power tools create sparks
which may ignite the dust or fumes.
= Keep children and bystanders away while operating a power tool.
Distractions can cause you to lose control.
ELECTRICAL SAFETY
• Power tool plugs must match the outlet. Never modify the plug in any
way. Do not use any adaptor plugs with earthed (grounded) power tools.
Unmodified plugs and matching outlets will reduce risk of electric shock
• 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.
• Do not expose power tools to rain or wet conditions. Water entering a
power tool will increase the risk of electric shock.
• 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.
• 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.
if operating a power tool in a damp location is unavoidable, use a
ground fault circuit interrupter (GFCl} protected supply. Use of a GFCI
reduces the risk of electric shock.

PERSONAL SAFETY
• Stay alert, watch what you are doing and use common sense when
operating a power tool. Do not use tool while tired or under the
influence of drugs, alcohol, or medication. A moment of inattention while
operating power tools may result in serious personal injury.
• Use personal protective equipment. Always wear eye protection. Protective
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. 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 finger on the switch or
energizing in power tools that have the switch on invites accidents.
• 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.
• Do not overreach. Keep proper footing and balance at all times. This
enables better control of the power tool in unexpected situations.
• 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.
• 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 dust-related hazards.
POWER TOOL USE AND CARE
• Do not force the power tool. Use the correct power tool for your
application. The correct power tool will do the job better and more safely at
the rate for which it was designed.
• 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.
• Disconnect the plug from the power source andlor 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.
• 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.
• 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.

Keepcuttingtoolssharpandclean.Properlymaintainedcuttingtoolswith
sharpcuttingedgesarelesslikelytobindandareeasiertocontrol.
Usethepower tool, accessories, too[ 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.
BATTERY TOOL USE AND CARE
• Recharge only with the charger specified by the manufacturer. A
charger that is suitable for one type of battery pack may create a risk of fire
when used with another battery pack.
• Use power tools only with specifically designated battery packs. Use of
any other battery packs may create a risk of injury and fire.
= 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 fire.
= Under abusive conditions, liquid may be ejected from the battery;
avoid contact. If contact accidentally occurs, flush with water. If liquid
contacts eyes, additionally seek medical help. Liquid ejected from the
battery may cause irritation or burns.
SERVICE
Have your power too[ serviced by a qualified repair person using only
identical replacement parts. This will ensure that the safety of the power
tool is maintained.
Follow instructions in the Maintenance section of this manual. Use of
unauthorized parts or failure to follow Maintenance instructions may create
a risk of shock or injury.
SPECiFiC SAFETY RULES FOR iMPACT DRIVER
Hold power tools by their insulated gripping surfaces when performing
an operation where the cutting tool may contact hidden wiring. If a
cutting accessory contacts a "live" wire, it may make exposed metal parts
of the power tool "live" and could give the operator an electric shock.

KNOW YOUR iMPACT DRIVER (Fig. 1)
Fig. 1
Coupler
Variable-Speed
Trigger Switch
LED Worklight-__
Direction-of-Rotation
(Forward/
Center-LocWReverse)
Bit Storage
PRODUCT SPECIFICATIONS
Motor 19.2 Volt DC
Coupler 1/4 in. (6.35mm)
No-load Speed 0-2500/min (RPM)
Impacts per minute 0-3500 BPM
Torque 1600 in.lbs
WARNING: The safe use of this product requires an understanding of the
information on the tool and in this operatoCs manual, as well as knowledge of
the project you are attempting. Before use of this product, familiarize yourself
with all operating features and safety rules.

VARIABLE SPEED
The variable=speed trigger switch delivers higher speed with increased trigger
pressure and Bowerspeed with decreased trigger pressure.
FORWARD/CENTER=LOCK/REVERSE SELECTOR
The impact driver has a direction=of=rotation selector located above the trigger
switch for changing the direction of bit rotation. Setting the trigger switch in the
OFF (centerqock) position helps reduce the possibility of accidental starting
when not in use.
LED WORKLIGHT
The LED worklight, located on the base of the impact driver, illuminates
when the trigger switch is depressed. This feature provides extra Bight for
increased visibility.
,&
_A, WARNING: If any parts are broken or missing, do not attempt to attach the
battery pack or operate the impact driver until the broken or missing parts are
replaced. Failure to do so could result in possible serious injury.
_, WARNING: Do not attempt to modify this impact driver or create
accessories not recommended for use with this impact driver. Any such
alteration or modification is misuse and could result in a hazardous condition
leading to possible serious injury.
_, WARNING: To prevent accidental starting that could cause serious personal
injury, always remove the battery pack from the impact driver when changing bits.
UNPACKING
This product has been shipped completely assembled.
• Carefully remove the tool and any accessories from the carton. Make sure
that all items listed in the packing list are included.
Inspect the tool carefully to make sure that no breakage or damage
occurred during shipping.
Do not discard the packing material until you have carefully inspected and
satisfactorily operated the tool.
If any parts are damaged or missing, please return the tool to the place
of purchase.
PACKING LIST
Impact driver, bit (installed on the impact driver) and operator's manual
10

This product will accept Craftsman C3 19.2V lithium-ion battery packs. For
complete charging instructions, refer to the Operator's Manual for the battery
packs and chargers.
_, WARNING: To prevent accidental starting that could cause serious personal
injury, always remove the battery pack from the tool when assembling parts,
making adjustments, installing or removing bit, cleaning, or when it is not in use.
TO ATTACH BATTERY
Fig. 2
PACK (Fig, 2)
1. Lock the trigger switch on the
impact driver by placing the
direction-of-rotation (forward/
center-lock/reverse) selector
in the center position.
2. Align the raised rib on the
battery pack with the groove
inside the impact driver, and
then insert the battery pack
into the tool.
NOTICE: Make sure that the latch on the battery pack snaps into place and
the battery pack is secured to the tool before beginning operation. Improper
assembly of the battery pack can cause damage to internal components.
Latch
Battery-
Release
Button
TO DETACH BATTERY PACK (Fig. 2)
1. Lock the trigger switch on the impact driver by placing the direction-of-
rotation (forward/center-locWreverse) selector in the center position.
2. Depress both battery-release buttons, located on the sides of the battery
pack, to release the battery pack.
3. Pull the battery pack out and remove it from the tool.
,_. WARNING: Battery tools are always in operating condition. Therefore, the
direction-of-rotation selector should always be locked when the tool is not in use
or when carrying the tool at your side.
11