The Bosch GBH 2-28 F SDS Plus Rotary Hammer offers the highest drilling rate and chiselling performance in its class With 25 longer lifetime than other rotary hammers in its class for more efficiency and 27 less vibration than the predecessor model due to active vibration damping It is supplied with a quick-change chuck for fast changes between drilling with impact in concrete and drilling without impact in wood and metal The rotating brush plate for equal power in forward and reverse rotation Continuously variable speed control provides clean drilling starts and the forwardreverse rotation can dislodge jammed drill bits Fitted with an overload clutch to protect the user and the machine and a ball grommet to prevent cable breaks Supplied with 1 x Auxiliary Handle 1 x Depth Stop 1 x Quick-Change Chuck and 1 x Carry Case Specification Input Power 880W No Load Speed 0-900min Impact Rate 0-4000bpm 32 joules Capacity Concrete Hammer Drill Bits 4-28mm; Masonry Core Cutters 68mm; Steel 13mm; Wood 30mm Weight 31kg