"The M18 cordless 1/2in. high-torque impact wrench provides industry-leading power in a compact size. Built with a Milwaukee 4-pole motor and a powerful impact mechanism, the 2662-20 delivers 650 in.-lbs. of torque. The 1/2in. anvil with detent pin achieves superior socket retention. Max. Torque ft.-lbs. 450, Tool Weight lbs. 6.7 w/battery, Cordless Yes, Tool Length in. 8 7/8, Battery Included No, Case Included No, Charger Included No, Volts 18, Speed - No Load RPM 0-1,900, Reversible Yes, Drive in. 1/2, Impacts Per Minute IPM 0-2,200. Tool only battery sold separately 1/2in. anvil w/pin detent 4-pole frameless motor for maximum run time"