The FEIN ASCM 18 QM 4-speed drill/driver that enables you to tailor the speed (400, 800, 1,950 and 3,850 rpm) exactly to the application at hand. High torque levels up to 797 in/lbs allow for fast and simple drilling in the toughest of materials. The ASCM 18 QM is robust and durable with its solid metal gearbox, 1/2" metal chuck, and features a brushless motor for unbeatable power output. Sink up to 2,500 screws (3/16" x 1-1/2") in wood with a single 6Ah battery charge. Switching drill bits and accessories has never been easier than with the included QuickIN MAX accessory interface. Nothing beats FEIN for power, precision and dependability.