The Metabo KH5-40 is a combination hammer drill with 2 functions: hammer drilling and chiselling. Metabo S-automatic clutch with mechanical decoupling of the drive for safe working should the drill stop unexpectedly. Robust die cast aluminium gear housing for optimum heat dissipation and long service life.Max. single blow energy (EPTA): 8.5 JMaximum impact rate: 2800 /minRated input power: 1100 WDrill diameter concrete with hammer drills: 40 mmDrill diameter masonry with core bits: 105 mmNo-load speed: 620 rpmBit retainer: SDS-maxCollar diameter: 61 mmDrill Bits and Chisels sold separately.