Impact Wrench, Power Source Air Powered, Air Consumption 4 cfm, Air Inlet 1/4 in NPT, Air Pressure 90 psi, Max. Air Pressure 90 psi, Min. Hose Size 3/8 in, Exhaust Location Bottom, Duty Rating Light Duty, Breakaway Torque 250 ft-lb, Fastening Torque 250 ft-lb, Free Speed 7,000 RPM, Impact Rated Yes, Impact Sound Level 90 dB, Impacts per Minute 1,600, Number of Speed Settings 3, Max. Bolt Capacity 1/2 in, Drive Size 1/2 in Square, Drive Type Standard, Retainer Type Friction Ring