Compact， lightweight， and powerful. Incredible 1062 In./Lb. of torque. More power and double the run time of Ni-Cad. High-power variable speed transmission delivers 0-2200 RPM and 0-3800 IPM (Impacts Per Minute). Ergonomic handle has rubber inserts and provides comfort and control. Includes: built-in LED work light， an on-board battery power indicator and an electric brake. 1/4 In. Hex Quick. Change locking collet. Includes: 20-Volt compact lithium-ion 1.5Ah battery pack， a compact charger and #2 Philips impact driver bit.