The Milwaukee 2662-22 M18 1/2 in. High Torque Impact Wrench features a 4-pole motor and a powerful impact mechanism that delivers 450 ft.-lb. of torque. This Milwaukee 2662-22 compact impact wrench also features a 1/2 in. anvil with detent pin to help increase socket retention. The impact wrench also delivers 2,200 impacts per minute for powerful performance. Cordless tools powered by red lithium batteries deliver more torque, more power, and longer run-time than the competition. With the purchase of a 2662-22 Receive a Free 48-11-1840 M18 4.0 Ah Extended Capacity Battery, a $129 Value.