3 4 5
W 17-150, WX 17-150
W 17-180, WX 17-180
We, being solely responsible: Hereby declare that
these angle grinders, identified by type and serial
number *1), meet all relevant requirements of
directives *2) and standards *3). technical
documents for *4) - see Page 3.
The angle grinders, when fitted with original Metabo
accessories, are suitable for grinding, sanding,
separating and wire brushing metal, concrete,
stone and similar materials without the use of water.
The user bears sole responsibility for any damage
caused by improper use.
Generally accepted accident prevention regula-
tions and the enclosed safety information must be
For your own protection and for the
protection of your electrical tool, pay
attention to all parts of the text that are
marked with this symbol!
WARNING – Reading the operating instruc-
tions will reduce the risk of injury.
WARNING Read all safety warnings and
instructions. Failure to follow all safety warn-
ings and instructions may result in electric shock,
fire and/or serious injury.
Keep all safety instructions and information for
Pass on your electrical tool only together with these
4.1 Safety Warnings Common for Grinding,
Sanding, Wire Brushing or Abrasive Cut-
a) This power tool is intended to function as a
grinder, sander, wire brush or cut-off tool. Read
all safety warnings, instructions, illustrations
and specifications provided with this power
tool. Failure to follow all the instructions may result
in electric shock, fire and/or serious injury.
b) Operations such as polishing are not recom-
mended to be performed with this power tool.
Operations for which the power tool was not
designed may create a hazard and cause personal
c) Do not use accessories which are not specif-
ically designed and recommended by the tool
manufacturer. Just because the accessory can be
attached to your power tool, it does not assure safe
d) The rated speed of the accessory must be at
least equal to the maximum speed 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 acces-
sories cannot be adequately guarded or controlled.
f) Treaded mounting of accessories must
match the grinder spindle thread. For
accessories mounted by flanges, the arbour
hole of the accessory must fit the locating
diameter of the flange. 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) Do not use a damaged accessory. Before
each use inspect the accessory such as abra-
sive wheels for chips and cracks, backing pad
for cracks, tear or excess wear, wire brush for
loose or cracked wires. If a power tool or
accessory is dropped, inspect for damage or
install an undamaged accessory. After
inspecting and installing an accessory, posi-
tion 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.
h) Wear personal protective equipment.
Depending on application, use face shield,
safety goggles or safety glasses. As appro-
priate, wear dust mask, hearing protectors,
gloves and workshop apron capable of stop-
ping 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 filtering
particles generated by your operation. Prolonged
exposure to high intensity noise may cause hearing
i) 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 opera-
j) Hold power tool by insulated gripping
surfaces only, when performing an operation
where the cutting accessory may contact
hidden wiring or its own cord. A cutting acces-
sory contacting a "live" wire may make exposed
metal parts of the power tool "live" and could give
the operator an electric shock.
k) Position the cord clear of the spinning acces-
sory. If you lose control, the cord may be cut or
snagged and your hand or arm may be pulled into
the spinning accessory.
1. Declaration of Conformity
2. Specified Use
3. General Safety Instructions
4. Special Safety Instructions
I) 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.
m) 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.
n) 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.
o) Do not operate the power tool near flam-
mable materials. Sparks could ignite these mate-
p) Do not use accessories that require liquid
coolants. Using water or other liquid coolants may
result in electrocution or shock.
4.2 Kickback and Related Warnings
Kickback is a sudden reaction to a pinched or
snagged rotating wheel, backing pad, 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 to the accessory’s rotation at
the point of jamming.
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 condi-
Kickback is the result of power tool misuse and/or
incorrect operating procedures or conditions and
can be avoided by taking proper precautions as
a) Maintain a firm grip on the power tool and
position your body and arm to allow you to
resist kickback forces. Always use the auxiliary
handle, if provided, for maximum control over
kickback or torque reaction during start-up.
The operator can control torque reactions or kick-
back forces, if proper precautions are taken.
b) Never place your hand near the rotating
accessory. Accessory may kickback over your
c) 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.
d) 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.
e) Do not attach a saw chain woodcarving
blade or toothed saw blade. Such blades create
frequent kickback and loss of control.
4.3 Safety Warnings Specific for Grinding
and Cutting-Off Operations:
a) 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 cannot be
adequately guarded and are unsafe.
b) The grinding surface of the centre depressed
wheels must be mounted below the plane of
the guard lip. An improperly mounted wheel that
projects through the plane of the guard lip cannot be
c) 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
the operator from broken fragments, accidental
contact with the wheel and sparks that could ignite
d) 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.
e) 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 different from
grinding wheel flanges.
f) 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.
4.4 Additional Safety Warnings Specific for
Abrasive Cutting-Off Operations:
a) Do not “jam” the 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 binding of the wheel in the cut and the possibility
of kickback or wheel breakage.
b) Do not position your body in line with and
behind the rotating 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.
c) 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. Investigate and take corrective action to
eliminate the cause of wheel binding.
d) 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
e) Support panels or any oversized workpiece
to minimise the risk of wheel pinching and kick-
back. Large workpieces tend to sag under their own
weight. Supports must be placed under the work-
piece near the line of cut and near the edge of the
workpiece on both sides of the wheel.
f) Use extra caution when making a "pocket
cut" into existing walls or other blind areas. The
protruding wheel may cut gas or water pipes, elec-
trical wiring or objects that can cause kickback.
4.5 Safety Warnings Specific for Sanding
a) Do not use excessively oversized sanding
disc paper. Follow manufacturer's recommen-
dations when selecting sanding paper. Larger
sanding paper extending beyond the sanding pad
presents a laceration hazard and may cause snag-
ging, tearing of the disc or kickback.
4.6 Safety Warnings Specific for Wire Brush-
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) 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.
4.7 Additional Safety Instructions
WARNING – Always wear protective
Use elastic cushioning layers if they have been
supplied with the abrasive and if required.
Observe the specifications of the tool or accessory
manufacturer! Protect the discs from grease or
Grinding discs must be stored and handled with
care in accordance with the manufacturer's instruc-
Never use parting grinder discs for roughing work!
Do not apply pressure to the side of parting grinder
The workpiece must lay flat and be secured against
slipping, e.g. using clamps. Large workpieces must
be sufficiently supported.
If accessories with threaded inserts are used, the
end of the spindle may not touch the base of the
hole on the grinding tool. Make sure that the thread
in the accessory is long enough to accommodate
the full length of the spindle. The thread in the
accessory must match the thread on the spindle.
See page 3 and chapter 14. Technical Specifica-
tions for more information on the spindle length and
During machining, of metals in
particular, conductive dust can form
deposits inside the machine. This can lead to the
transfer of electrical energy onto the machine
housing. This can mean a temporary danger of
electric shocks. This is why it is necessary when the
machine is running to blow compressed air through
the rear ventilation slots of the machine regularly,
frequently and thoroughly. Here, the machine must
be held firmly.
We recommend using a stationary extractor system
and connecting a residual current circuit-breaker
When the angle grinder is shut down via the FI
circuit breaker, it must be checked and cleaned.
See chapter 9. Cleaning for more information on
cleaning the motor.
Dust from material such as paint containing lead,
some wood species, minerals and metal may be
harmful. Contact with or inhalation of the dust may
cause allergic reactions and/or respiratory diseases
to the operator or bystanders.
Certain kinds of dust are classified as carcinogenic
such as oak and beech dust especially in
conjunction with additives for wood conditioning
(chromate, wood preservative). Material containing
asbestos must only be treated by specialists.
- Where the use of a dust extraction device is
possible it shall be used.
- The work place must be well ventilated.
- The use of a dust mask of filter class P2 is recom-
Follow national requirements for the materials you
want to work with.
Materials that generate dusts or vapours that may
be harmful to health (e.g. asbestos) must not be
When working in dusty conditions, ensure that
ventilation openings are not blocked. If it becomes
necessary to remove dust, first disconnect the
power tool from the mains supply (use non-metallic
objects) and avoid damaging internal components.
Damaged, eccentric or vibrating tools must not be
Avoid damage to gas or water pipes, electrical
cables and load-bearing walls (static).
Connect a FI circuit-breaker with max.
release current (30 mA) upstream when using the
Pull the plug out of the socket before making any
adjustments, converting or servicing the machine.
A damaged or cracked auxiliary handle must be
replaced. Never operate a machine with a defective
A damaged or cracked safety guard must be
replaced. Never operate a machine with a defective
Do not switch on the machine if tool parts or guard
devices are missing or defective.
This power tool is not suitable for polishing work.
Improper use of the machine will void the warranty!
The motor may overheat and damage the electric
power tool. We recommend using our angle
polisher for polishing work.
See page 2.
1 Support flange
3 Spindle locking button
4 Lock (to prevent the machine from being switched
on unintentionally, or for continuous operation)*
5 Trigger (for switching on and off)
6 Button (to turn the main handle)*
7 Main handle
8 Additional handle / Additional handle with vibration
9 Safety cover
10 Adjusting nut
11 2-hole spanner
12 Lever (to adjust safety guard without the use of
13 Quick-release clamp (to adjust safety guard
without the use of tools)*
14 Screw (to adjust clamping force of quick-
* depending on equipment/not in scope of delivery
Before plugging in the device, check to see
that the rated mains voltage and mains
frequency, as specified on the rating label, match
your power supply.
6.1 Attaching the additional handle
Always work with the additional handle
attached (8)! Manually screw in the additional
handle securely in the left, centre or right threaded
hole (depending on requirements).
6.2 Install safety guard
For safety reasons, always use the safety
guard provided for the respective wheel! See
also chapter 11.
Safety guard for grinding
Designed for work with roughing wheels, flap
sanding pads, diamond cut-off wheels.
W 17-150, WX 17-150: see page 2, illustration D.
- Push and hold the lever (12). Place the safety
guard (9) in the position indicated.
- Release the lever and turn the safety guard until
the lever engages.
- Push the lever and turn the safety guard until the
closed section is facing the operator.
- Make sure that the guard is seated securely: the
lever must engage and you should not be able to
turn the safety guard.
W 17-180, WX 17-180: see page 2, illustration E.
- Open quick-release clamp (13). Mount the safety
guard (9) in the position indicated.
- Turn the safety guard until the closed section is
facing the operator.
- Close quick-release clamp.
- If necessary, increase clamping force of quick-
release clamp by tightening the screw (14) (with
opened quick-release clamp).
Use only accessories that
are covered by at least
3.4 mm by the safety guard.
6.3 Pivotable main handle
Only work with the main handle (7) engaged.
See illustration A on page 2.
- Push in the button (6).
- The main handle (7) can now be turned 90° to both
sides and can be engaged.
- Make sure that it is securely positioned: the main
handle (7) must be engaged and it should not be
possible to move it.
6.4 Power supply
The mains sockets must be protected using time-
delay fuses or circuit breakers.
Machines with "X" in the model designation: (with
integrated, automatic restriction of the starting
current (soft start)). The mains sockets can also be
protected using fast-acting fuses or circuit breakers.
Disconnect the mains plug before changing
any accessories. The machine must be
switched off and the spindle at a standstill.
For reasons of safety, attach the parting guard
before performing parting work (see chapter
7.1 Locking the spindle
Press in the spindle locking button (3) only
when the spindle is stationary!
- Press in the spindle locking button (3) and turn the
spindle (2) by hand until you feel the spindle
locking button engage.
7.2 Placing the grinding wheel in position
See illustration B on page 2.
- Fit the support flange (1) on the spindle. The
flange should not turn on the spindle when prop-
- Position the grinding wheel on the support flange
(1) as shown in illustration B.
The grinding wheel must lay flat on the supporting
flange. The metal flange on the parting grinder
disc must lay flat on the support flange.
7.3 Tightening/loosening the clamping nut
Securing the clamping nut (10):
The 2 sides of the clamping nut are different. Screw
the clamping nut onto the spindle as follows:
See illustration C on page 2.
- A) For thin grinding wheels:
The edge of the clamping nut (10) faces upwards
so that the thin grinding wheel can be attached
B) For thick grinding wheels:
6. Initial Operation
7. Attaching the grinding wheel
The edge of the clamping nut (10) faces down-
wards so that the clamping nut can be attached
securely to the spindle.
- Lock the spindle. Turn the clamping nut (10)
clockwise using the 2-hole spanner (11) to
Releasing the clamping nut:
- Lock the spindle (see chapter 7.1). Turn the
clamping nut (10) anticlockwise using the 2-hole
spanner (11) to unscrew.
8.1 Switching On and Off
Always guide the machine with both hands.
Switch on first, then guide the accessory
towards the workpiece.
The machine must not be allowed to draw in
additional dust and shavings. When switching
the machine on and off, keep it away from dust
deposits. After switching off the machine, only place
it down when the motor has come to a standstill.
Avoid inadvertent starts: always switch the
tool off when the plug is removed from the
mains socket or if there has been a power cut.
In continuous operation, the machine
continues running if it is forced out of your
hands. Therefore, always hold the machine with
both hands using the handles provided, stand in a
safe position and concentrate.
Switching on: Press in lock (4) and then press
trigger (5). Let go of the lock (4).
Switching off: Release the trigger (5).
Continuous operation (depending on features)
Switching on: Press in lock (4) and hold in. Press
and hold in trigger (5). The machine is now
switched on. Now press in the lock (4) once
more to lock the trigger (5) (continuous
Switching off: Press the trigger (5) and release.
8.2 Working instructions
Grinding and sanding operations:
Press down the machine evenly on the surface and
move back and forth so that the surface of the work-
piece does not become too hot.
Roughing: position the machine at an angle of 30° -
40° for the best working results.
Always work against the run of the disc
(see illustration). Otherwise there is
the danger of the machine kicking
back from the cut out of control. Guide
the machine evenly at a speed suit-
able for the material being processed. Do not tilt,
apply excessive force or sway from side to side.
Press down the machine evenly.
Motor cleaning: blow compressed air through the
rear ventilation slots of the machine regularly,
frequently and thoroughly. Here, the machine must
be held firmly.
Button (6) for adjusting the handle: Occasion-
ally blow compressed air through the button (when
pressed, in all 3 main handle positions).
Switching on the machine reduces the voltage
briefly. Unfavourable mains power conditions may
have a detrimental effect on other machines.
Network impedances less than 0.4 ohms should not
Restart protection: If the mains plug is inserted with
the machine switched on, or if the current supply is
restored following an interruption, the machine
does not start up. Switch the machine off and on
Use only genuine Metabo accessories. See page 4.
Use only accessories which fulfil the requirements
and specifications listed in these operating instruc-
A Safety guard for cut-off grinding
Designed for work with cut-off wheels, diamond cut-
Install as described under "Safety guard for
grinding" (chapter 6.2).
B Hand guard for sanding and wire brushing
Designed for work with support plates, sanding
pads, wire brushes.
Install hand guard under the additional side-
For a complete range of accessories, see
www.metabo.com or the accessories catalogue.
Repairs to electrical tools must be carried out
by qualified electricians ONLY!
If you have Metabo electrical tools that require
repairs, please contact your Metabo service centre.
For addresses see www.metabo.com.
You can download spare parts lists from
The sanding dust generated may contain
hazardous materials: do not dispose of with the
household waste, but at a special collection point
for hazardous waste.
13. Environmental Protection
Observe national regulations on environmentally
compatible disposal and on the recycling of disused
machines, packaging and accessories.
Only for EU countries: Never dispose of
power tools in your household waste! In
accordance with European Guideline 2002/
96/EC on used electronic and electric equipment
and its implementation in national legal systems,
used power tools must be collected separately and
handed in for environmentally compatible recycling.
Explanation of details on page 3. Subject to
changes serving technical progress.
Dmax =Max. diameter of accessory
tmax,1 =Max. permitted thickness of clamping
shank on accessory when using clamping
tmax,3 =Roughing wheel/cut-off wheel:
max. permissible thickness of the acces-
M =Spindle thread
l =Length of the grinding spindle
n =No-load speed (maximum speed)
P1 =Nominal power input
P2 =Power output
m =Weight without mains cable
Measured values determined in conformity with
Machine in protection class II
~ Alternating current
The technical specifications quoted are subject to
tolerances (in compliance with the relevant valid
These values make it possible to assess the
emissions from the power tool and to compare
different power tools. Depending on the operating
conditions, the condition of the power tool or the
accessories, the actual load may be higher or lower.
For assessment purposes, please allow for breaks
and periods when the load is lower. Based on the
adjusted estimates, arrange protective measures
for the user e.g. organisational measures.
Vibration total value (vector sum of three directions)
determined in accordance with EN 60745:
ah, SG = Vibration emission value
ah, DS = Vibration emission value
Kh,SG/DS = Uncertainty (vibration)
Typical A-effective perceived sound levels:
LpA =Sound pressure level
LWA =Acoustic power level
KpA, KWA= Uncertainty
Wear ear protectors!
14. Technical Specifications