Powered by FUEL? technology, this rotary hammer delivers faster than corded speed, corded durability and all day work on one charge. The POWERSTATE™ brushless motor provides 1.7 ft-lbs. of impact energy, 0-1,400 RPM and 0-4,900 BPM. The REDLITHIUM HIGH DEMAND? 9.0 Battery Pack delivers up to 5X more run-time, 35% more power and runs 60% cooler than standard 18-Volt lithium-ion batteries. It maintains full power and runs substantially cooler through heavy applications, allowing users to push their cordless tools harder and longer than ever before. Fully compatible with 125+ M18? tools.