1,GS,CCC,ISO 2,SDS+clamping system 3,Adjustable side handle 26mm electric hammer 4,Large comfortable D-shape ... handle 1,GS,CCC and ISO certificates2,SDS+clamping system3, ... electric hammer Specifications as following: Rated Voltage110-230VRated frequency50/60hzInput power520WNo load speed0-900r/minDrill Capacity26mm 20mm hammer drill power tools ...