Specification :- Square Drive : 3/4' Bolt Capacity : in: 1' / mm: 27 Max. Torque (ft-lb) : 1000 Free Speed (RPM) : 5,800 Average Air Consumption (CFM) : 0.38 Air Pressure (PSI) : 90 Air Inlet (NPT) : 3/4' Net Weight (kg) : 5.45