Fein WSB-14-125T: en

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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.

Regularly clean the power tool’s air vents. 

 The motor’s fan 

will draw the dust inside the housing and excessive accu-

mulation of powdered metal may cause electrical haz-

ards.

Do not operate the power tool near flammable materials.

Sparks could ignite these materials.

Do not use accessories that require liquid coolants.

 Using 

water or other liquid coolants may result in electrocution 

or shock.

Kickback and related warnings

Kickback is a sudden reaction to a pinched or snagged 

rotating wheel, backing pad, brush or any other acces-

sory. 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 at the point of the binding.

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 mate-

rial 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 incor-

rect operating procedures or conditions and can be 

avoided by taking proper precautions as given below.

Maintain a firm grip on the power tool and position your 

body and arm to allow you to resist kickback forces. Always 

use auxiliary handle, if provided, for maximum control over 

kickback or torque reaction during start-up.

 The operator 

can control torque reactions or kickback forces, if proper 

precautions are taken.

Never place your hand near the rotating accessory.

 Acces-

sory may kickback over your hand.

Do not position your body in the area where power tool will 

move if kickback occurs.

 Kickback will propel the tool in 

direction opposite to the wheel’s movement at the point 

of snagging.

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.

Do not attach a saw chain woodcarving blade or toothed 

saw blade.

 Such blades create frequent kickback and loss 

of control over the power tool.

Additional safety instructions for grinding and 

cutting off operations

Use only wheel types that are recommended for your power 

tool and the specific guard designed for the selected wheel.

Wheels for which the power tool was not designed can-

not be adequately guarded and are unsafe.

The guard must be securely attached to the power tool and 

positioned for maximum safety, so the least amount of 

wheel is exposed towards the operator.

 The guard helps to 

protect operator from broken wheel fragments and acci-

dental contact with wheel.

Wheels must be used only for recommended applications. 

For example: do not grind with the side of cut-off wheel.

Abrasive cut-off wheels are intended for peripheral 

grinding, side forces applied to these wheels may cause 

them to shatter.

Always use undamaged wheel flanges that are of correct 

size and shape for your selected wheel.

 Proper wheel 

flanges support the wheel thus reducing the possibility of 

wheel breakage. Flanges for cut-off wheels may be differ-

ent from grinding wheel flanges.

Do not use worn down wheels from larger power tools.

Wheels intended for larger power tools are not suitable 

for the higher speed of a smaller tool and may burst.

Additional safety warnings specific for abrasive 

cutting off operations

Do not “jam” the cut-off wheel or apply excessive pressure. 

Do not attempt to make an excessive depth of cut.

 Over-

stressing the wheel increases the loading and susceptibil-

ity to twisting or binding of the wheel in the cut and the 

possibility of kickback or wheel breakage.

Do not position your body in line with and behind the rotat-

ing wheel.

 When the wheel, at the point of operation, is 

moving away from your body, the possible kickback may 

propel the spinning wheel and the power tool directly at 

you.

When wheel is binding 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.

 Investi-

gate and take corrective action to eliminate the cause of 

wheel binding.

Do not restart the cutting operation in the workpiece. Let 

the wheel reach full speed and carefully reenter the cut.

The wheel may bind, walk up or kickback if the power 

tool is restarted in the workpiece.

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.

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.

Safety warnings specific for sanding operations

Do not use excessively oversized sanding disc paper. Follow 

manufacturers recommendations, when selecting sanding 

paper.

 Larger sanding paper extending beyond the sand-

ing pad presents a laceration hazard and may cause snag-

ging, tearing of the disc, or kickback.

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Safety warnings specific for wire brushing 

operations

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.

If the use of a guard is recommended for wire brushing, do 

not allow any interference of the wire wheel or brush with 

the guard.

 Wire wheel or brush may expand in diameter 

due to work load and centrifugal forces.

Additional safety warnings

Use elastic spacers/liners when these are provided with the 

grinding accessory.

Make absolutely sure that the accessory is mounted in 

accordance with the manufacturer’s instructions. The 

mounted accessory must be able to rotate freely.

 Incor-

rectly mounted accessories can loosen during operation 

and fly off.

Handle accessories carefully and store them according to 

the manufacturer’s instructions.

 Damaged accessories can 

form cracks and break off during operation.

When using application tools with a threaded insert, take 

care that the thread in the application tool is long enough 

to hold the spindle length of the power tool. The thread in 

the application tool must match the thread on the spindle.

Incorrectly mounted application tools can loosen during 

operation and cause injuries.

Do not machine any material containing asbestos.

 Asbestos 

is cancerogenic.

Beware of any concealed electric cables, gas or water con-

duits;

 check the working area with a metal detector, for 

example, before commencing work.

Use a stationary extraction system, blow out ventilation 

slots frequently and connect a residual current device 

(RCD) on the line side.

 When working metal under 

extreme operating conditions, it is possible for conduc-

tive dust to settle in the interior of the power tool. The 

total insulation of the power tool can be impaired.

Do not rivet or screw any name-plates or signs onto the 

power tool. 

If the insulation is damaged, protection against 

an electric shock will be ineffective. Adhesive labels are 

recommended.

Always work using the auxiliary handle. 

The auxiliary han-

dle ensures reliable guidance of the power tool.

Before putting into operation, check the mains connection 

and the mains plug for damage.

The value of the estimated weighted acceleration 

obtained in the laboratory can serve for predicting the 

exposure to vibration. During work, weighted accelera-

tions will be dependent on the particular application, and 

deviation from this laboratory value can occur.

Intended use of the power tool:

hand-guided angle grinder for commercial use, for dry-

sanding/grinding and cutting metal and stone in weather-

protected environments using the application tools and 

accessories recommended by FEIN.

This machine is also intended to be powered by a.c. gen-

erators with sufficient power output that correspond 

with ISO 8528, design class G2. Compliance with this 

Standard in particular is not given when the so-called dis-

tortion factor exceeds 10%. When in doubt, inform 

yourself about the generator in use.

Operating instructions.

Putting into operation:

Please note:

 The accessory begins to move with short, 

low-power impulses. The angle grinder thereby indicates 

that the first pressing surface has been activated.

Please note:

 The angle grinder does not start up:

– when the switchpads at the front 

and

 rear are pressed 

at the same time

– when the rapid-clamping lever is not tilted back and 

engaged

– if one or more of the pressing surfaces is/are pressed 

while the mains plug is inserted

Operation:

Only keep 

one

 of the 4 pressing surfaces permanently 

pressed. The angle grinder remains at working speed.

Note:

 The switchpads actuate easily in order to prevent 

tense working postures. Changing the working posture is 

possible at any time by changing the switching position. 

As long as the grinding accessory is not automatically 

being braked, the angle grinder can be brought up to the 

working speed again within 0.5 seconds by pressing one 

of the 4 switchpads.

The 

self-start prevention lock

 prevents the angle grinder 

from starting again on its own accord if the current sup-

ply has been interrupted during operation, even if only 

for a short time, e.g. by pulling out the mains plug.

Repair and customer service.

Blow out the interior of the power tool at 

regular intervals from outside through the air 

vents with dry, compressed air.

Unscrew the clamping unit by hand to protect it from 

damage and dirt.

If the supply cord of this power tool is damaged it must 

be replaced by a specially prepared cord available 

through the FEIN customer service centre.

If required, you can change the following parts yourself:

Application tools, auxiliary handle, clamping unit.

Warranty and liability.

The warranty for the product is valid in accordance with 

the legal regulations in the country where it is marketed. 

In addition, FEIN also provides a guarantee in accordance 

with the FEIN manufacturer’s warranty declaration.

Only part of the accessories described or shown in this 

instruction manual will be included with your power 

tool.

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