Air Random Orbital Sander Pad Size 5 in PSA Pad Face Type Orbit Dia 3/8 in Vacuum/Non-Vacuum Non-Vacuum HP - Air Tools 0.25 hp Free Speed 12 000 RPM Variable Speed No Body Style - Air Tools Palm Lever Throttle Industrial Duty Spindle Size 5/16 In.-24 3.5 cfm Average CFM @ 15 Second Run Time 14 cfm CFM @ Full Load Required Pressure 90 psi Air Inlet 1/4 in NPT Min Hose Size 1/4 in Overall Length 6 1/2 in Rear Exhaust Type