A Bosch rotary hammer or demolition hammer meets all requirements thanks to its extremely long lifetime, premium quality and impressive power. The Bosch hammer suits any situation and any robust material.Bosch rotary hammers for drilling and chiselling are robust and durable tools with high power and impressive technology, safety and comfort.
Top performance with low vibration
High drilling rate and 20% higher chiselling performance than other rotary hammers in its class
Low vibration (only 14,5 m/sý) for comfortable use due to Bosch Vibration Control
Balanced weight distribution due to L-shaped design for comfortable use
Rotation stop for chiselling
Ball grommet for preventing cable breaks
Rotating brush plate for equal power in forward and reverse rotation
Impact stop for drilling in wood and metal
Technical data: GBH 3-28 DRE Professional
Rated power input 800 W
Max. impact energy 3,1 J
Impact rate at rated speed 0 ? 4.000 bpm
Rated speed 0 ? 900 rpm
Weight 3,5 kg
Length 326 mm
Height 233 mm
Bit holder SDS-plus
drilling range
Drilling diameter in concrete with hammer drill bits 4 – 28 mm
Optimum range of applications in concrete with hammer drill bits 12 ? 18 mm
Drilling diameter in concrete with core cutters 68 mm
Max. drilling diameter in masonry with core cutters 82 mm
Max. drilling diameter in steel 13 mm
Max. drilling diameter in wood 30 mm
Functions
Right-hand/left-hand rotation
Electronic
Overload clutch
Bosch SDS System
Noise/vibration information
Measured values determined according to EN 60745.
Total vibration values (vector sum of three directions)
Chiselling
Vibration emission value ah 10.0 m/sý
Uncertainty K 1.5 m/sý
Hammer drilling in concrete
Vibration emission value ah 14.5 m/sý
Uncertainty K 1.6 m/sý
Advantages
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
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