The Milwaukee 2451-22 M12 3/8 in. Cordless Square Impact Wrench features a powerful impact mechanism that delivers up to 1,000 in. lb. of torque. The Milwaukee 2451-22 wrench has an easy socket insertion/release function and features a 3/8 in. anvil with friction ring retention. Its on-board Fuel gauge displays the remaining runtime, while a built-in LED illuminates the work surface. Cordless tools powered by red lithium batteries deliver more torque, more power, and longer run-time than the competition. With purchase of a 2451-22 receive a free M12 2.0 Ah Compact Battery.