The rotary hammer with SDS-plus GBH 4-32 DFR Professional is the fastest multi-hammer in the 4kg class . It drills up to 30% faster (25 mm diameter) than other tools in its class. It has low vibration levels of only 10 m/s² for less tiring work due to Bosch Vibration Control.Compact design for perfect handling.The drilling diameter is 6-32mm on concrete, 40mm on wood and 32mm on metal.