Bosch GBH 2-28 DV Professional Rotary Hammer with SDS Plus  

Advantages:

The most powerful tool in its class

1.Highest drilling rate and highest chiselling performance in its class

2.25% longer lifetime than other rotary hammers in its class for more efficiency

3.27% less vibration than the predecessor model due to active vibration damping

4.Rotation stop for chiselling

5.Ball grommet for preventing cable breaks

6.Rotating brush plate for equal power in forward and reverse rotation

7.Overload clutch to protect the user and the machine

8.Forward/reverse rotation for dislodging jammed drill bits

9.Continuously variable speed control for clean drilling starts  

Technical data:

Rated power input  -   850 Watts

Max. impact energy  -   3.2 J

Impact rate at rated speed -   0 – 4000 bpm

Rated speed   -  0 – 900 rpm

Weight   -  2.9 kg

Length   -  379 mm

Height   -  216 mm

Toolholder  -   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     8 – 16 mm

Drilling diameter in concrete with core cutters     68 mm

Max. drilling diameter in masonry with core cutters     68 mm

Max. drilling diameter in steel     13 mm Max. drilling diameter in wood     30 mm  

Functions

Forward/reverse operation Electronic Overload clutch Noise/vibration information

Measured values determined according to EN 60745.

Total vibration values (vector sum of three directions)

Hammer drilling in concrete      - Vibration emission value ah     - 11.0 m/s².

Uncertainty K     1.5 m/s² Chiselling   - Vibration emission value ah     11.0 m/s² - Uncertainty K     1.5 m/s²  

Standard accessories: Auxiliary handle Carrying case Depth stop 210 mm