The Bosch GBH 4-32 DFR Professional SDS Plus Hammer is designed for durability, featuring a very robust metal gearbox housing. Its Vibration Control enables effortless and continuous work in time intensive applications. It also features a keyless and quick-change chuck, Reverse Mode, Rotation Control Clutch, Variable Speed, and Vario-Lock. This rotary hammer is intended for drilling and chiselling in concrete, masonry, wood, and metal. It is compatible with various dust attachments. Supplied with: 1 x Auxiliary Handle, 1 x Depth Stop 310mm, 1 x Quick Change Chuck 13mm, 1 x SDS Plus Quick-change Chuck and 1 x Carrying Case. Specifications: Input Power: 900W.No Load Speed: 0-800/min.Impact Rate: 0-3,600/bpm.Impact Energy: 4.2 Joules.Drilling Capacity: Concrete, Hammer Drill Bits 6-32mm, Metal 13mm, Wood 32mm.Weight: 4.7kg.