GBH 3-28 DFR Professional

Rotary Hammer with SDS plus

Top performance with 20% less vibration

• 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 metal

Functions & key features

Technical data

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 : 3.1 J

Tool holder : SDS plus

Voltage, electrical : 240 V

Weight : 3.6 kg

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 : 11.8 m/s²

Uncertainty K : 1.5 m/s²

Total vibration values (Chiselling in concrete)

Vibration emission value ah : 10 m/s²

Uncertainty K : 1.5 m/s²

Hammer drilling in concrete

Vibration emission value ah : 11.8 m/s²

Uncertainty K : 1.5 m/s²

Chiselling in concrete

Vibration emission value ah : 10 m/s²

Uncertainty K : 1.5 m/s²