The M18 FUEL 1-3/4” SDS Max Rotary Hammer with ONE KEY kit generates the power of a 15A Corded Rotary Hammer. It has a 1-3/4″ capacity, 8.1 ft-lbs of impact energy, 380 RPM, and 2,900 BPM. Our cordless rotary hammer is designed for the professional user, allowing ultimate power, control, enhanced safety, and productivity. The POWERSTATE Brushless Motor gives you 8.1 ft-lbs of impact energy that meets and rivals that of corded competition. REDLINK PLUS intelligence tool technology ensures maximum rotary drill performance and protects it from overload, overheating, and over discharge. The M18 REDLITHIUM HIGH OUTPUT HD12.0 battery delivers unmatched run-time in all applications when used with the rotary hammer drill. It allows the SDS Max hammer drill to chip 1/2 ton of material per charge so you can work harder for longer. The full feature hammer delivers maximum control and enhanced safety with the AUTOSTOP E-Clutch. This prevents over-rotation in case the tool gets bound up while you are drilling in rebar or hard aggregate. Competitive tools can rotate up to 360 degrees while our rotary hammer will stop rotating at 45 degrees when the tool gets bound up. This feature is designed to give you more control while on the job. The cordless rotary hammer is compatible with ONE KEY, wirelessly connecting to your smartphone to track and manage the tool’s performance and location.