This professional class pneumatic impact wrench delivers more power, lightweight composite body reduce strain, and a more compact housing. Twin-hammer delivers more torque to the anvil, less vibration. Descriptions: Drive size: 1/2" 1050 ft. lbs of Bolt breakaway torque Lightweight Composite body Forward And Reverse Free Speed: 7,000 RPM Clutch type: Twin Hammer Working pressure: 90 PSI(6.3Bar) Average air consumption: 4.5 CFM Air inlet: 1/4" NPT Noise Level: 93 dBA Recom. Hose Size: 3/8" I.D. Weight: 4.75lbs Length: 7.56" Exhaust: handle