Air Belt Sander Industrial Duty 0.35 HP Belt Size 3/8 in W x 13 in L Free Speed 22 000 rpm 14.00 Average CFM @ 15 Second Run Time 28.0 CFM @ Full Load Required Pressure 90 psi Air Inlet 1/4 in NPT Min Hose Size 3/8 In. Overall Length 12 In. Rear Exhaust Type Variable Speed Yes Rubber Grip Handle Material Aluminum Housing Material Lever Throttle