Milwaukee's 5518-21 1-3/4" SDS MAX Rotary Hammer, designed for all-day concrete drilling and chipping, has a powerful 15A motor capable of delivering 8.1 ft-lbs of impact energy for demanding applications. The AVS Anti-Vibration System is designed to reduce vibration, limit fatigue, and increase jobsite productivity, while AUTOSTOP prevents over-rotation in a tool bind-up. This rotary hammer offers maximum versatility with two-mode operation, 12-position chisel rotation, and a variable-speed dial with up to 6-speed settings. This 1-3/4” SDS MAX Rotary Hammer delivers the capabilities needed to complete a variety of applications when power is readily available