Voltage: 120V ACAmperage: 6.5ADrive Size: 1/4" HexNo Load RPM: 0 - 2,500Designed For Efficient Fastening In Steel Building And HVAC ApplicationsPowerful Motor Delivers Up To 2,500 RPM Of Driving Power And 140 in. lbs. Of Torque21 Position Clutch Provides Maximum Fastening Control Within Reaction ForceErgonomic Grip And Two-Finger Trigger Optimizes User Comfort And Balance