Powered by FUEL technology, the M18 FUEL 1 in. 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 2.1 ft. lbs 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% 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.