Powerful Impact Mechanism--Delivers up to 1,000 in lbs of torque * Compact Design--Tool belt portable at only 2.3 lbs * 3/8? Anvil w/Friction Ring Retention--Easy socket insertion/release and increased durability * Voltage: 12V, Anvil Size: 3/8 in, Anvil Type: Square, Torque: 1000 in-lbs, RPM: 0-2200 RPM, IPM: 0-3000 IPM * On-Board Fuel Gauge--Displays Remaining Run-Time. Built In L.E.D--Illuminates Work Surface