"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. Battery Type Lithium-ion, Tool Weight lbs. 6.8, Volts 18, Charger Included Yes, Storage Type Plastic case, Drive in. 3/4, Batteries qty. 2, Impacts Per Minute IPM 0-2,200, Drive Type Hog ring, Max. Speed RPM 0-1,900, Max. Forward Torque ft.-lbs. 525. 3/4in. anvil with friction ring provides quick and easy one-handed socket changes"