Wesco WS3113KU.1 User manual

Rotary tool EN
WS3113KU.1
(DM160)
2

1 2 4 5
67
3
8
9
10

Fig.A Fig.B
Fig.C Fig.D
Fig.E Fig.F
Fig.G Fig.H
Fig.I Fig.J
Fig.K Fig.L
Fig.M Fig.N
Fig. Fig.
Fig.O
1
1
1
3
2
2
2
a b
AB
dc b a
4mm
7
10

Fig.A Fig.B
Fig.C Fig.D
Fig.E Fig.F
Fig.G Fig.H
Fig.I Fig.J
Fig.K Fig.L
Fig.M Fig.N
Fig. Fig.
Fig.O
1
1
1
3
2
2
2
a b
AB
dc b a
4mm
7
10

5
EN
PRODUCT SAFETY
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;
• 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 chemical: 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.
WARNING: This product can expose you to
chemicals including lead and Di(2-ethylhexyl)
phthalate (DEHP) which are known to the State
of California to cause cancer and birth defects or
other reproductive harm. For more information go to
www.P65Warnings.ca.gov.
GENERAL POWER TOOL SAFETY WARNINGS
WARNING! Read all safety warnings and all 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.
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
flammable 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 earthed (grounded) power tools.
Unmodified plugs and matching outlets will reduce risk
of electric shock.
b) 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.
c) Do not expose power tools to rain or wet
conditions. Water entering a power tool will increase
the risk of electric shock.
d) 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.
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.
f) If operating a power tool in a damp location is
unavoidable, use a residual current device (RCD)
protected supply. Use of an RCD 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 influence 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. Protective equipment such as dust
mask, non-skid safety shoes, hard hat, or hearing
protection used for appropriate conditions will reduce
personal injuries.
c) 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 energising 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
jewellery. Keep your hair, clothing and gloves
away from moving parts. Loose clothes, jewellery or

6EN
long hair can be caught in moving parts.
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 dust-related hazards.
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.
b) 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.
c) 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 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.
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.
5. SERVICE
a) Have your power tool serviced by a qualified repair
person using only identical replacement parts.
This will ensure that the safety of the power tool is
maintained.
SAFETY INSTRUCTIONS FOR ALL
OPERATIONS
Safety warnings common for grinding, sanding, wire
brushing, polishing or abrasive cutting-off operations:
a) This power tool is intended to function as a
grinder, sander, wire brush, polisher or cut-off
tool. Read all safety warnings, instructions,
illustrations and specifications provided with
this power tool. Failure to follow all instructions listed
below may result in electric shock, fire and/or serious
injury.
b) Operations such as carving is not recommended
to be performed with this power tool. Operations for
which the power tool was not designed may create a
hazard and cause personal injury.
c) Do not use accessories which are not specifically
designed and recommended by the tool
manufacturer. Just because the accessory can be
attached to your power tool, it does not assure safe
operation.
d) The RATED SPEED of the accessories must be at
least equal to the operating speed setting marked
on the power tool. Accessories running faster than
their RATED SPEED can break and fly apart.
e) The outside diameter and the thickness of your
accessory must be within the capacity rating of
your power tool. Incorrectly sized accessories cannot
be adequately controlled.
f) The arbour size of wheels, sanding drums or any
other accessory must properly fit the spindle or
collet of the power tool. Accessories that do not
match the mounting hardware of the power tool will run
out of balance, vibrate excessively and may cause loss
of control.
g) Mandrel mounted wheels, sanding drums, cutters
or other accessories must be fully inserted into
the collet or chuck. If the mandrel is insufficiently
held and/or the overhang of the wheel is too long, the
mounted wheel may become loose and be ejected at
high velocity.
h) Do not use a damaged accessory. Before each use
inspect the accessory such as abrasive wheels for
chips and cracks, sanding drum for cracks, tear
or excess wear, wire brush for loose or cracked
wires. If power tool or accessory is dropped,
inspect for damage or install an undamaged
accessory. After inspecting and installing an
accessory, position yourself and bystanders away
from the plane of the rotating accessory and run
the power tool at maximum no-load speed for one
minute. Damaged accessories will normally break
apart during this test time.

7
EN
i) Wear personal protective equipment. Depending
on application, use face shield, safety goggles or
safety glasses. As appropriate, wear dust mask,
hearing protectors, gloves and workshop apron
capable of stopping small abrasive or workpiece
fragments. The eye protection must be capable of
stopping flying debris generated by various operations.
The dust mask or respirator must be capable of
filtrating particles generated by your operation.
Prolonged exposure to high intensity noise may cause
hearing loss.
j) Keep bystanders a safe distance away from work
area. Anyone entering the work area must wear
personal protective equipment. Fragments of
workpiece or of a broken accessory may fly away and
cause injury beyond immediate area of operation.
k) Hold power tool by insulated gripping surfaces
only, when performing an operation where the
cutting accessory may contact hidden wiring or its
own cord. Cutting accessory contacting a “live” wire
may make exposed metal parts of the power tool “live”
and could give the operator an electric shock.
l) Always hold the tool firmly in your hand(s) during
the start-up. The reaction torque of the motor, as it
accelerates to full speed, can cause the tool to twist.
m) Use clamps to support workpiece whenever
practical. Never hold a small workpiece in one
hand and the tool in the other hand while in use.
Clamping a small workpiece allows you to use your
hand(s) to control the tool. Round material such as
dowel rods, pipes or tubing have a tendency to roll
while being cut, and may cause the bit to bind or jump
toward you.
n) Position the cord clear of the spinning accessory.
If you lose control, the cord may be cut or snagged
and your hand or arm may be pulled into the spinning
accessory.
o) Never lay the power tool down until the accessory
has come to a complete stop. The spinning
accessory may grab the surface and pull the power tool
out of your control.
p) After changing the bits or making any
adjustments, make sure the collet nut, chuck
or any other adjustment devices are securely
tightened. Loose adjustment devices can unexpectedly
shift, causing loss of control, loose rotating components
will be violently thrown.
q) Do not run the power tool while carrying it at your
side. Accidental contact with the spinning accessory
could snag your clothing, pulling the accessory into
your body.
r) Regularly clean the power tool’s air vents. The
motor’s fan will draw the dust inside the housing and
excessive accumulation of powdered metal may cause
electrical hazards.
s) Do not operate the power tool near flammable
materials. Sparks could ignite these materials.
t) Do not use accessories that require liquid
coolants. Using water or other liquid coolants may
result in electrocution or shock.
u) Instruction that the maximum recommended diameter
of mounted wheels, threaded cones and plugs
shall not exceed 55 mm and that the maximum
recommended diameter of sanding accessories shall
not exceed 80 mm.
FURTHER SAFETY INSTRUCTIONS FOR ALL
OPERATIONS
KICKBACK AND RELATED WARNINGS
Kickback is a sudden reaction to a pinched or snagged
rotating wheel, sanding band, brush or any other accessory.
Pinching or snagging causes rapid stalling of the rotating
accessory which in turn causes the uncontrolled power tool
to be forced in the direction opposite of the accessory’s
rotation.
For example, if an abrasive wheel is snagged or pinched
by the workpiece, the edge of the wheel that is entering
into the pinch point can dig into the surface of the material
causing the wheel to climb out or kick out. The wheel may
either jump toward or away from the operator, depending on
direction of the wheel’s movement at the point of pinching.
Abrasive wheels may also break under these conditions.
Kickback is the result of power tool misuse and/or incorrect
operating procedures or conditions and can be avoided by
taking proper precautions as given below.
a) Maintain a firm grip on the power tool and position
your body and arm to allow you to resist kickback
forces. The operator can control kickback forces, if
proper precautions are taken.
b) Use special care when working corners, sharp
edges etc. Avoid bouncing and snagging the
accessory. Corners, sharp edges or bouncing have a
tendency to snag the rotating accessory and cause loss
of control or kickback.
c) Do not attach a toothed saw blade. Such blades
create frequent kickback and loss of control.
d) Always feed the bit into the material in the same
direction as the cutting edge is exiting from the
material (which is the same direction as the chips
are thrown). Feeding the tool in the wrong direction
causes the cutting edge of the bit to climb out of the
work and pull the tool in the direction of this feed.
e) When using rotary files, cut-off wheels, high-
speed cutters or tungsten carbide cutters, always

8EN
have the work securely clamped. These wheels will
grab if they become slightly canted in the groove, and
can kickback. When a cut-off wheel grabs, the wheel
itself usually breaks. When a rotary file, high-speed
cutter or tungsten carbide cutter grabs, it may jump
from the groove and you could lose control of the tool.
ADDITIONAL SAFETY INSTRUCTIONS FOR
GRINDING AND CUTTING-OFF OPERATIONS
SAFETY WARNINGS SPECIFIC FOR
GRINDING AND ABRASIVE CUTTING-OFF
OPERATIONS
a) Use only wheel types that are recommended
for your power tool and only for recommended
applications. For example: do not grind with the
side of a cut-off wheel. Abrasive cut-off wheels are
intended for peripheral grinding, side forces applied to
these wheels may cause them to shatter.
b) For threaded abrasive cones and plugs use only
undamaged wheel mandrels with an unrelieved
shoulder flange that are of correct size and length.
Proper mandrels will reduce the possibility of breakage.
c) Do not “jam” a cut-off wheel or apply excessive
pressure. Do not attempt to make an excessive
depth of cut. Overstressing the wheel increases the
loading and susceptibility to twisting or snagging of the
wheel in the cut and the possibility of kickback or wheel
breakage.
d) Do not position your hand in line with and behind
the rotating wheel. When the wheel, at the point of
operation, is moving away from your hand, the possible
kickback may propel the spinning wheel and the power
tool directly at you.
e) When wheel is pinched, snagged or when
interrupting a cut for any reason, switch off the
power tool and hold the power tool motionless
until the wheel comes to a complete stop. Never
attempt to remove the cut-off wheel from the cut
while the wheel is in motion otherwise kickback
may occur. Investigate and take corrective action to
eliminate the cause of wheel pinching or snagging.
f) Do not restart the cutting operation in the
workpiece. Let the wheel reach full speed and
carefully re-enter the cut. The wheel may bind,
walk up or kickback if the power tool is restarted in the
workpiece.
g) Support panels or any oversized workpiece to
minimize the risk of wheel pinching and kickback.
Large workpieces tend to sag under their own weight.
Supports must be placed under the workpiece near the
line of cut and near the edge of the workpiece on both
sides of the wheel.
h) Use extra caution when making a “pocket cut”
into existing walls or other blind areas. The
protruding wheel may cut gas or water pipes, electrical
wiring or objects that can cause kickback.
ADDITIONAL SAFETY INSTRUCTIONS FOR
WIRE BRUSHING OPERATIONS
SAFETY WARNINGS SPECIFIC FOR WIRE
BRUSHING OPERATIONS
a) Be aware that wire bristles are thrown by the
brush even during ordinary operation. Do not
overstress the wires by applying excessive load to
the brush. The wire bristles can easily penetrate light
clothing and/or skin.
b) Allow brushes to run at operating speed for at
least one minute before using them. During this
time no one is to stand in front or in line with the
brush. Loose bristles or wires will be discharged during
the run-in time.
c) Direct the discharge of the spinning wire brush
away from you. Small particles and tiny wire
fragments may be discharged at high velocity during
the use of these brushes and may become imbedded in
your skin.
SYMBOLS
To reduce the risk of injury, user must
read instruction manual
Double insulation
Warning
Wear ear protection
Wear eye protection
Wear dust mask

9
EN
COMPONENT LIST
1. Spindle lock button
2. Carbon Brush Holder (on both sides)
3. Variable Speed Control
4. Hook
5. Power Cord
6. Auxiliary Handle
7. Cap for auxiliary handle
8. Collet Nut
9. On/Off Switch
10. Original cap
TECHNICAL DATA
Type Designation WS3113KU.1 (DM160) (31- designation of machinery, representative of rotary tool)
Rated voltage 120V~60Hz
Rated power 1.4A
Rated no load speed 8000-35000/min
Collet size 3/32” / 1/8”
Protection class / II
Weight 1.43lbs

10 EN
ACCESSORIES
Front auxiliary handle 1
Cap for auxiliary handle 1
Flexible shaft 1
Safe guard 1
82pcs accessories:
25pcs x Cut off wheel
25pcs x Sanding paper
8pcs x Grinding wheel with shank(3.2mm)
1pc x Sanding shank(3.2mm)
5pcs x Sanding band
2pcs x Drill(2.3/3.2mm)
2pcs x Diamond bit (3.2mm)
2pcs x Mandrel (3.2mm)
4pcs x Felt wheel
1pc x Whet stone
2pcs x Collet (2.3/3.2mm) (Including the one
installed on machine)
1pc x Spanner
1pc x L pin
1pc x Brush (3.2mm)
1pc x Hss cutter (3.2mm)
1pc x Multipurpose cutting bit (3.2mm)
1
We recommend that you purchase your accessories listed in the above list from the same store that sold you the tool. Refer to
the accessory packaging for further details. Store personnel can assist you and offer advice.

11
EN
OPERATING INSTRUCTIONS
NOTE: Before using the tool, read the instruction book carefully.
INTENDED USE
This power tool is intended to function as a grinder, sander,
wire brush, polisher or cut-off tool.
ASSEMBLY
1. CHANGE THE COLLET (SEE FIG. A)
Two size of collets are provided to accommodate the
different accessories shank sizes. When using an accessory
with a smaller or larger shaft, you will need to change the
collet which matches the shank size of the accessory as
follows.
Press the spindle lock button. Loosen the collet nut (a) with
the spanner provided. Remove the collet nut (a) and then
fully insert the appropriate size collet (b) into the spindle.
Reinstall the collet nut (a) by finger tight. Do not over-tighten
the nut when there is no accessory in the collet.
NOTE: Always use the collet which matches the shank
size of the accessory you plan to use. Do not force a larger
diameter shank into a smaller collet.
2. FITTING AN ACCESSORY (SEE FIG. B, C)
Press the spindle lock button. Hold down and rotate the
spindle by hand until the spindle lock engages with the
spindle. Loosen the collet nut anti-clockwise using the
spanner if necessary.
Fully insert the tool shank into the collet. Tighten the collet
nut with the spanner but do not over-tighten. Finally release
the spindle lock button.
WARNING: Do not engage the spindle lock button
while the tool is running.
3. FITTING A CUTTING/SANDING WHEEL (SEE FIG. D, E, F, G)
Loosen the small screw on the mandrel with spanner.
Insert the screw through the wheel and then screw into
the mandrel. Do not over-tighten otherwise the wheel may
crack.
4. ASSEMBLE THE AUXILIARY HANDLE (SEE FIG. H)
First remove the original cap (10) from the tool.
Insert the auxiliary handle into the tool, then rotate the cap
designed for auxiliary handle (7) to tighten the handle by
hand.
5. FITTING THE FLEXIBLE SHAFT(SEE FIG. I)
Remove the housing cap from the tool by turning it counter-
clockwise.
Loose the collet nut a little from the shaft by turning it
counter-clockwise.
Insert the flexible shaft inner cable (b) into the motor shaft (a)
until the stopper (c) touches the collet nut.
Tighten the collet nut with collet spanner if necessary.
Thread the flexible shaft nut (d) onto the tool housing by
turning it clockwise.
6. CHANGING THE COLLET & ACCESSORIES IN FLEXIBLE
SHAFT ((SEE FIG. J, K)
To change the collet or install an accessory in the flexible
shaft, follow the same general procedure as for changing
the collet and installing accessories on the mini drill (Refer
to Fitting an accessory in Assembly section). To lock the
spindle, rotate the collet until the hole in the shaft is aligned
with the hole in the flexible shaft collar. Insert the flexible
shaft wrench through the holes to lock the shaft.
OPERATION
1. SWITCH ON/OFF (SEE FIG. L)
NOTE: This tool has been set to the slowest speed before
switching on.
To start the tool, press the on/off switch to “I” ON position.
To stop, press the switch to “O” OFF position.
2. SPEED ADJUSTMENT (SEE FIG. M)
To achieve the best result when working with different
materials, you can adjust the tool speed with the variable
speed control. The tool has a variable speed control for
precise speed adjustment. Set it to the required speed for
operation.
NOTE: Select a low speed when working with wood, plastics
and polishing.
Generally, select higher speed for small tools while lower
speed for larger tools.
From number “1” to “MAX”, the speed is corresponding
from 8000 to 35000/min.
3. DRILLING OPERATION
Turn the tool on until full speed. Apply the tool to the
workpiece gently. To obtain a good finish, move the tool in
the leftward direction slowly.
NOTE: Apply light pressure on the tool. Excessive pressure
will only cause a poor finish and overloading of the motor.
4. HOLDING THE TOOL
For milling or engraving, hold the tool like a pen. Take care
not to cover the ventilation slots.
NOTE: The tool will get warm during normal operation.
Observe the rated operating time.

12 EN
USING ACCESSORIES
The chart below lists the description, use speed and scope for some of the small articles supplied together with the tool by
category. To achieve best performance of the tool, it is strongly recommended that you read it prior to operation, failure to
adhere to this may cause accessories to fail.
NOTE: ALWAYS Wear eye protection Insert the shaft FULLY into the collet. Use ONLY up to the speeds stated below.
PICTURE DESCRIPTION SPEED FOR USE ON:
Grinder bits
Various head styles,
on shafts
Full speed Metal
Mild steel
Diamond Bits
Various head styles
Full speed Wood Zinc
Plastic Nickel
Copper Mild steel
Wool Wheel
Mounted to screw drill
Half speed Metal
Mild steel
Sanding/Cutting wheels
Mounted to cutting wheel fixture
NOTE: DO NOT over tighten screw
Half speed Metal
Mild steel
Wood
Sanding Roll
Mounted on hold for rubber wheel
Full speed Metal
Mild steel
NOTE: To fit the sanding roll, firstly loosen the small screw on top of the hole for rubber wheel,
this will allow the rubber to relax. Slide the sanding roll onto the holder.
To secure, simply tighten the screw and the rubber roll will swell, gripping the sanding drum.

13
EN
MAINTENANCE
Remove the plug from the socket before carrying out
any adjustment, servicing or maintenance.
Your power tool requires no additional lubrication or
maintenance.
Never use water or chemical cleaners to clean your power
tool. Wipe clean with a dry cloth. Always store your power
tool in a dry place. Keep the motor ventilation slots clean.
Keep all working controls free of dust.
If the supply cord is damaged, it must be replaced by the
manufacturer, its service agent or similarly qualified persons
in order to avoid a hazard.
REPLACING THE CARBON BRUSHES (SEE FIG. N, O)
The carbon brushes must be checked on a regular basis.
There are two brushes in the tool and they must be replaced
in pairs.
Remove the carbon brush holders with the spanner and
check the brushes. If the length of brush is less than 4mm,
replace both brushes. Have the machine run at no load for
15 minutes.
NOTE: Use only the correct type of carbon brushes.
Caution: Using the tool with worn brushes will permanently
damage the motor.
TROUBLESHOOTING
1. If your power tool does not start, check the plug on the
mains supply first.
2. If your power tool use in low efficiency, check the tool
speed and type of accessory.
3. If a fault can not be rectified, return the tool to an
authorized dealer for repair.