Milwaukee m18 fuel 1-3/4in. Sds max rotary hammer with one key kit generates power of a 15a corded rotary hammer. It has a 1-3/4in. Capacity, 8.1 ft/lbs of impact energy, 380 rpm and 2,900 bpm. Cordless rotary hammer is designed for professional user, allowing ultimate power, control, enhanced safety, and productivity. Powerstate brushless motor delivers 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. M18 redlithium high output hd12.0 battery delivers unmatched run-time in all applications when used with rotary hammer drill. It allows sds max hammer drill to chip 1/2 ton of material per charge so users can work harder for longer. Full-feature hammer delivers maximum control and enhanced safety with autostop e-clutch. This prevents over-rotation if tool gets bound up while being used in drilling rebar or hard aggregate applications. Competitive tools can rotate up to 360°s, whileMilwaukee rotary hammer will stop rotating at 45°s when tool gets bound up. This feature ensures that users have more control while on job.Milwaukee m18 fuel 4-1/2in.- 6in. Braking grinder, paddle switch, no-lock generates power of a 13a corded grinder, brakes all accessories in under 3 seconds, and has a 6 in. grinding capacity.