Powered by M18 FUEL technology, the 28mm SDS Plus Rotary Hammer delivers faster than corded speed, corded durability, and all day work on one charge. The MILWAUKEE POWERSTATE Brushless Motor provides 4.5J of impact energy, 0-1,350 RPM and 0-5,000 BPM. The MILWAUKEE REDLITHIUM™ 5.0Ah Battery Packs (not included) provide all day work on one charge, maximum power and 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.