Cordless hammer drill  EN
98
Waste electrical products must not 
be disposed of with household 
waste. Please recycle where 
facilities exist. Check with your local 
authorities or retailer for recycling 
advice.
COMPONENT LIST
1. CHUCK
2. TORQUE ADJUSTMENT RING
3. TWO-SPEED GEAR CONTROL
4. FORWARD/REVERSE ROTATION CONTROL
5. SOFT GRIP HANDLE
6. BATTERY PACK *
7. BATTERY PACK RELEASE BUTTON *
8. SIGHT LIGHT
9. ON/OFF SWITCH
* Not all the accessories illustrated or 
described are included in standard delivery.
TECHNICAL DATA
Type   WT351 WT351.X (3-designation of 
machinery, representative of hammer drill)
WT351 WT351.X **
Charger voltage 100-240 V ~50/60 Hz
Rated voltage 20 V   Max***
No load speed 0-400/0-1500 min
Impact rate 0-6400/0-24000 bpm
Number of clutch position 18+1+1
Max torque 40 N.m
Chuck capacity 13 mm
Max. drilling 
capacity
Steel  13 mm
Wood 30 mm
Masonry 13 mm
Machine weight (bare 
tool)
1.1 kg
**X=1-999, A-Z, M1-M9 there are only used for 
different customers, there are no safe relevant 
changes between these models
***Voltage measured without workload. Initial 
battery voltage reaches maximum of 20 volts. 
Nominal voltage is 18 volts.
NOISE INFORMATION
A weighted sound pressure L
pA
: 76,7 dB(A)
A weighted sound power L
wA
: 87,7 dB(A)
K
PA
& K
WA
5.0 dB(A)
Wear ear protection.
VIBRATION INFORMATION
Vibration total values (triax vector sum) determined 
according to EN 62841:
Impact drilling 
into concrete
Vibration emission 
value a
h,ID
 = 4,683 m/s²
Uncertainty K = 1,5 m/s²
Drilling into metal
Vibration emission 
value a
h,D
 = 2,722 m/s²
Uncertainty K = 1,5 m/s²
The declared vibration total value and the declared 
noise emission value have been measured in 
accordance with a standard test method and may be 
used for comparing one tool with another.
The declared vibration total value and the declared 
noise emission value may also be used in a 
preliminary assessment of exposure. 
WARNING: The vibration and noise emissions 
during actual use of the power tool can differ 
from the declared value depending on the ways 
in which the tool is used especially what kind of 
workpiece is processed dependant on the following 
examples and other variations on how the tool is used:
How the tool is used and the materials being cut or 
drilled.
The tool being in good condition and well maintained. 
The use of the correct accessory for the tool and 
ensuring it is sharp and in good condition.
The tightness of the grip on the handles and if any anti 
vibration and noise accessories are used.
And the tool is being used as intended by its design 
and these instructions. 
This tool may cause hand-arm vibration 
syndrome if its use is not adequately managed.