BOSCH GBH 3-28 DFR SDS+ HAMMER DRILL 230V

• High drilling rate and 20% higher chiselling power than other rotary hammers in its class
• 20% less vibration than other hammers in its class for more comfortable working due to Bosch Vibration Control
• Quick change chuck for fast changes between drilling with impact in concrete and drilling without impact in wood and meta

Performance data
Impact rate at rated speed	0 – 4,000 bpm
Rated speed	0 – 900 rpm

Additional data
Rated input power	800 W
Impact energy (according to EPTA 05/2016)	3.1 J
Voltage, electrical	230 V
Weight	3.5 kg
Tool holder	SDS plus

Drilling range
Drilling dia. concrete, hammer drill bits	4 – 28 mm
Opt. appl. range concrete, hammer drill bits	12 – 18 mm

Total vibration values (Hammer drilling in concrete)
Vibration emission value ah	14.5 m/s²
Uncertainty K	1.5 m/s²

Total vibration values (Chiselling in concrete)
Vibration emission value ah	9.7 m/s²
Uncertainty K	1.5 m/s²

Hammer drilling in concrete
Vibration emission value ah	14.5 m/s²
Uncertainty K	1.5 m/s²

Chiselling in concrete
Vibration emission value ah	9.7 m/s²
Uncertainty K	1.5 m/s²

The A-rated noise level of the power tool is typically as follows: Sound pressure level 91 dB(A); Sound power