HEX.Shank Size1/4''(6.35mm) Free Speed RPM1,800 Torque20-115 in-lbs (2.3-13.0 n-m) Overall Length10 3/8'' (265mm) Air Inlet (PT)1/4'' Air Hose (ID) 3/8'' Avg-Air Consumption5 CFM (142 l/min) Net Weight2.5 lbs.(1.1kgs) Packing Pcs/Ctn/G.W.(kgs)/Cuft10/Ctn/11.0/1.1'