1/2" Twin-Hammer Air Impact Wrench

• Free Speed: 7.500 RPM • Maximum Torque: 420 ft.-lbs. • Working Torque: 370 to 390 ft.-lbs. • Recommended Air Pressure: 90psi • Average Air Consumption: 5 SCFM • Air Inlet Size: ¼” NPT • Recommended Air Hose Size: 3/8” ID • Tool Length: 7.3” • Tool Weight: 5.7lbs. • Twin-Hammer impact mechanism provides up to 420 ft.-lbs. of torque • Pressure feed lubrication • Steel nose case with lightweight aluminum housing • Variable power settings • ¼” NPT air line coupler included.