Bosch GBH 2-24 DFR Professional - Technical Data; Noise;Vibration Information; Assembly

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Universal bit holder with SDS-plus shank
A)
Accessories shown or described are not included with the
product as standard. You can find the complete selection of
accessories in our accessories range.
Technical Data
Rotary hammer GBH 2-24 RE GBH 2-24 DRE GBH 2-24 DFR
Article number
3 611 B72 0.. 3 611 B72 1.. 3 611 B73 0..
Speed control ● ● ●
Stop rotation − ● ●
Clockwise/anti-clockwise rotation ● ● ●
Quick-change chuck − − ●
Rated power input W 790 790 790
Impact rate min-1 0–4200 0–4200 0–4200
Impact energy per stroke accord-
ing to EPTA-Procedure 05:2016
J 2.7 2.7 2.7
Rated speed min-1 0–930 0–930 0–930
Tool holder SDS-plus SDS-plus SDS-plus
Spindle collar diameter mm 48.5 48.5 48.5
Max. drilling diameter
– Concrete mm 24 24 24
– Masonry (with hollow core bit) mm 68 68 68
– Steel mm 13 13 13
– Wood mm 30 30 30
Weight according to EPTA-Pro-
cedure 01:2014
kg 2.8 2.8 2.9
Protection class
/ II / II / II
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
Noise emission values determined according to EN
60745-2-6.
Typically, the A-weighted noise level of the power tool is:
Sound pressure level 92,5dB(A); sound power level
103,5dB(A). Uncertainty K=3dB.
Wear hearing protection
Total vibration values a
h
(triax vector sum) and uncertainty K
determined according to EN 60745-2-6:
Hammer drilling into concrete: a
h
= 13,1 m/s
2
, K = 1,5 m/s
2
,
Chiselling: a
h
= 13,9 m/s
2
, K = 1,5 m/s
2
,
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.
Assembly
u Pull the plug out of the socket before carrying out any
work on the power tool.
Auxiliary handle
Do not operate your power tool without the auxiliary
handle (14).
Swivelling the auxiliary handle (see figure A)
You can swivel the auxiliary handle (14) to any angle for a
safe work posture that minimises fatigue.
1 609 92A 4VG | (24.01.2019) Bosch Power Tools