The Bosch GBH 18V-22 SDS-Plus Rotary Hammer is compact, light, and ergonomically designed with a well-defined centre of gravity, so you will find it easier and less tiring to handle it, especially when drilling overhead. KickBack Control and Electronic Precision Control (EPC) provide better tool handling and increased user protection. Compatible with all Bosch Professional 18V batteries, including ProCORE18V batteries and chargers (Professional 18V System). Also compatible with AMPShare, the multi-brand battery alliance.Specifications:Tool Holder: SDS-Plus.No Load Speed: 0-1,050/min.Impact Rate: 0-4,675/bpm.Impact Energy (according to EPTA 05/2016): 1.9 Joules.Drilling Diameter: Metal 13mm, Wood 20mm, Concrete with Hammer Drill Bits 4-22mm, Opt. app. range 4-12mm.Weight: 2.3kg excl. battery.