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: 230 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
GBH 3-28 DFR Professional: Further information
Product Highlights
The GBH 3-28 DFR Professional is the most versatile tool in Bosch’s SDS plus corded rotary hammer category. Its compact housing enables multiple applications in narrow and tight workspaces. Designed for convenience, its L-shaped design provides a balanced weight distribution, while its Vibration Control allows effortless continuous work. It also features a high power-to-weight ratio, with an 800 W motor and a tool weight of only 3.6 kg.
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