Powerful Milwaukee motor develops 460 in.-lbs. of torque Two speed ranges: 0-500/0-l1700 RPM All-metal Grip-Lok ratcheting chuck with carbide jaws Side handle rotates 360 for comfort Up to 50% more run-time than competitive products Exclusive quiet spindle lock mechanism relieves stress of metal slamming on metal Externally replaceable brushes for minimum down time Ergonomic soft finger grip for enhanced comfort Exclusive reversible battery allows for easier access into tight areas U.S.A.