Specification: Free Speed (rpm): 11,000 Max.Torque ft-lb (N.M) : 50 (68) Overall length: 190mm Air Inlet (inch) : 1/4 Air Hose (inch): 3/8 Average Air Consumption (cfm) / (1/min) : 2.5 / (71) Net Weight: 0.73Kg Warranty 6 Months