High drilling rate and 20 higher chiselling performance than other rotary hammers in its class Low vibration ,only 13 m/s² 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 Balanced weight distribution due to L-shaped design for more comfortable working 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