"The Milwaukee M18 Cordless High-Torque Impact Wrench provides heavy-duty power in a compact size. Built with a Milwaukee 4-pole motor and a powerful impact mechanism, this impact wrench delivers the high torque your job demands. Storage Type Plastic case, Battery Type Lithium-ion, Tool Weight lbs. 6.8, Charger Included Yes, Volts 18, Batteries qty. 2, Drive in. 3/4, Drive Type Hog ring, Impacts Per Minute IPM 0-2200, Max. Forward Torque ft.-lbs. 525, Max. Speed RPM 0-1900. 3/4in. anvil with friction ring provides quick and easy one-handed socket changes"