The Milwaukee? M18 FUEL? rear handle 7-1/4 in. circular saw is designed for the professional carpenter, remodeler, and general contractor. The circular saw generates the power of 15 amp corded saws, cut faster than 15 amp corded saws and delivers up to 570 cuts per charge with an M18? REDLITHIUM? HIGH OUTPUT? HD12.0 battery. The POWERSTATE? brushless motor provides this worm drive style saw with 5,800 RPM and higher speeds under load, delivering corded cutting performance. REDLINK Plus? intelligence lets the tool achieve maximum performance and protects the circular saw from overload, overheating and over discharge. The M18 REDLITHIUM? HIGH OUTPUT? HD12.0 battery (not included) is compatible with all M18? tools, runs 50% cooler, and delivers unmatched run times and 50% more power. The cordless circular saw has an electric blade break, LED work light, and all magnesium guards and shoe, increasing productivity and providing the durability to handle the toughest jobs. A multi-sized rafter hook allows the handheld circular saw to be stored on different materials. The saw’s gears don?t require oiling and maintenance reducing downtime and getting jobs done faster.