Specification Air Pressure 6.5Kg/Cm2 (90 Psi) Model: Rp-7221 Square Drive : 1/4″ Free Speed : 8000Rpm Working Torque : 44Ft-Lb(60N.M) Air Intel : 1/4″Npt Avg. Air Consumption : 3Cfm (85.5 1/Min) Air Hose : 3/8″Id Net Weight : 2.64Lbs(1.0Kgs) Capacity Bolt Size : 3-6Mm Overall Length : 9.28″(238Mm) Sug. Air. Comp : 2Hp