Powered by Fuel technology, the M18 Fuel 1 inch SDS Plus D-Handle Rotary Hammer delivers faster than corded speed, corded durability and all day work on one charge. The Milwaukee Powerstate brushless motor provides 1.7 ft-lb. of impact energy, 0-1,500 RPM and 0-4,400 BPM. The Milwaukee Redlithium XC 5.0 battery packs (not included) provide all day work on one charge, 20 percent more power and 2X more recharges than standard lithium-ion batteries. Redlink plus intelligence integrates full-circle communication between tool, battery and charger to protect from overloading, overheating and over-discharging.