Noise/Vibration Information; Auxiliary Handle (See Figure A) - Bosch GSB 20-2 Professional Manual Original

Impact drill
Impact rate at no-load speed
Rated torque (first/second gear)
Speed preselection
Right/left rotation
Keyed chuck
Keyless chuck
Fully automatic spindle lock (Auto-Lock)
Emergency switch-off
Spindle collar diameter
Max. drilling diameter (first/second gear)
– Concrete
– Masonry
– Steel
– Wood
Chucking capacity
Weight according to EPTA-Procedure
01:2014
Protection class
The specifications apply to a rated voltage [U] of 230 V. These specifications may vary at different voltages and in country-specific models.

Noise/vibration Information

Total vibration values a (triax vector sum) and uncertainty K
h
determined according to EN 60745-2-1:
2
Drilling into metal: a =3.0 m/s , K=1.5 m/s
h
Impact drilling into concrete: a =15 m/s
h
2
Screwdriving: a <2.5 m/s , K=1.5 m/s
h
2
Thread cutting: a <2.5 m/s , K=1.5 m/s
h
The vibration level given in these instructions has been
measured in accordance with a standardised measuring pro-
cedure and may be used to compare power tools. It can also
be used for a preliminary estimation of exposure to vibra-
tion.
The stated vibration level applies to the main applications of
the power tool. However, if the power tool is used for differ-
ent applications, with different application tools or poorly
maintained, the vibration level may differ. This can signific-
antly increase the exposure to vibration over the total work-
ing period.
To estimate the exposure to vibration accurately, the times
when the tool is switched off or when it is running but not ac-
tually being used should also be taken into account. This can
significantly reduce the exposure to vibration over the total
working period.
Implement additional safety measures to protect the oper-
ator from the effects of vibration, such as servicing the
power tool and application tools, keeping the hands warm,
and organising workflows correctly.
Bosch Power Tools
rpm
Nm
mm
mm
mm
mm
mm
kg
Assembly
Pull the plug out of the socket before carrying out any
u
work on the power tool.
2
,
2 2

Auxiliary handle (see figure A)

, K=2,0 m/s .
2
.
Do not operate your power tool without the auxiliary
u
2
.
handle (8).
You can adjust the auxiliary handle (8) to any of 12 positions
in order to achieve a safe work posture that minimises fa-
tigue.
Turn the lower gripping end of the auxiliary handle (8) in ro-
tational direction ➊ and push the auxiliary handle (8) for-
ward until you can swivel it into the required position. Then
pull the auxiliary handle (8) back again and turn the lower
gripping end in rotational direction ➋ to tighten it.
Setting the drilling depth (see figure A)
You can use the depth stop (9) to set the required drilling
depth X.
Turn the lower gripping end of the auxiliary handle (8) anti-
clockwise and set the depth stop (9).
Pull the depth stop far enough out that the distance between
the drill bit tip and the edge of the depth stop corresponds
to the required drilling depth X.
Then, turn the lower gripping end of the auxiliary handle (8)
clockwise to retighten it.
The fluting on the depth stop (9) must face downwards.
English | 13
GSB 20-2 GSB 20-2
51000
5,2/2,0
●
●
–
●
●
●
43
18/13
20/15
13/8
40/25
1.5–13
2.6
/ II
1 609 92A 4L0 | (16.08.2018)
51000
5,2/2,0
●
●
●
–
–
●
43
18/13
20/15
13/8
40/25
1.5–13
2.6
/ II