VEVOR Air Impact Wrench 1/2" Square Drive 880ft-lbs Nut-busting Torque 90-120PSIVEVOR Air Impact Wrench 1 2" Square Drive 880ft lbs Nut busting Torque 90 120PSI Busting Breakaway Torque Lightweight Design Ergonomic Design Torque Adjustment Quiet Tuned Exhaust System One Kit For Every Project Square Drive: 1 2",Max Torque: 680 ft lb,Operation Pressure: 90 120 PSI,Air Hose: 3 8"ID,Max Loosening Torque: 880 ft lb,Free Speed: 7500 RPM,Working Torque: 560 ft lb,Avg. Air Consumption: 5 CFM,Main Material: Aluminum,Weight: 5. 7 lb 2. 7 kg