Other features: - Lightweight rotary hammer for beginners.- A powerful 1050-watt motor with high drilling rate when drilling in concrete thanks to optimised hammer mechanism technology, vario-lock with 12 different chisel positions.- Sturdy hammer with SDS-max toolholder for drilling up to 38 mm diameter.- With chisel function for universal application.- Long lifetime, even in heavy-duty applications, as a result of the sturdy metal housing and compact design.- High drilling rate when drilling in concrete thanks to optimised hammer mechanism technology. Technical specifications : Rated power input : 1,050 Watt.Max. impact energy : 5.9 J.Impact rate at rated speed : 2,900 bpm.Weight : 5.8 kg.Toolholder : SDS-max.Drilling diameter in concrete with hammer drill bits : 16 - 38 mm.Drilling diameter in concrete with breakthrough drill bits : 45 - 55 mm.Drilling diameter in concrete with core cutters : 40 - 90 mm.Overload clutch.Bosch SDS System. 110 V.