makita 1100w 40mm sds max 2 mode combination hammer hr4003cMakita HR4003C 1100 W combination hammer. Maximum capacity 40 mm, SDS MAX insertion, 2 operating modes: percussion and percussion rotation. Safety clutch, soft start and variable speed from 250 to 500 rpm. CHARACTERISTICS 2 selector positions: rotation + percussion, percussion In percussion mode you can work with the trigger or leave it fixed with the switch Electronic speed regulator (5 positions) Light indicators that warn of brush wear or possible