Milwaukee M18 18 Volt Lithium-Ion Cordless Cordless 1/2 in. High Torque Impact Wrench w/Friction Ring - Tool OnlyThe M18[TM] cordless 1 2 in. high torque impact wrench provide industry leading power in a compact size. Built with a Milwaukee[Reg] 4 pole motor and a powerful impact mechanism, the 2662 22 and 2663 22 deliver 450 ft lbs of torque. A variable speed trigger provides speed control between 0 to 1900 RPM & 0 2200 ipm. The 2662 22 has a 1 2 in. anvil with detent pin to achieve superior socket retention, while the 2663 22 has a 1 2 in. anvil with friction