Powered by FUEL™ technology, the M18 FUEL™ 1″ 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 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.