Square Drive: 1" or 25 mm Speed Without Load: 4000 RPM Peak torque of 1800 Nm (1328 ft) Double Hammer System Air Consumption: 9cfm/min (256l/min) Air pressure: 90 psi (6.2 bar) Length: 9.2 inches or 234 mm Weight: 13.lbs (5.9 kg) Air Hose:1/2" and Air Inlet:3/8" packaged in a colorful box