Specification Model: Rp-7430 Free Speed : 7,500Rpm Air Intel : 1/4″Npt Air Hose : 3/8″Id Square Drive : 1/2″ Working Torque : 420Ft-Lb(567N.M) Avg. Air Consumption : 5Cfm (142/Min) Net Weight : 5.72Lbs(2.60Kgs) Capacity Bolt Size : 5/8″ (16Mm) Overall Length : 7.3″(185Mm) Sug. Air. Comp : 3Hp