M18 Fuel™ High Torque Impact Wrench with One-Key™ (Tool Only), 18 V, 1" SocketEliminates the need for compressors and generators due to the Powerstate brushless motor delivering up to 188 ft. lbs of nut busting torque 4 mode Drive Contro provides greater control over output speed and power Redlink Plus intelligence ensures maximum performance and protects from overloads, heating, and over discharge Integrated lanyard loop allows for safer use and easier storage One Key compatibility gives you the ability to customize, track,