Home » 6″ Air Sander Dual Action 6″ Air Sander Dual Action Specifications Free Speed: 10,000rpm Air Consumption: 4cfm Air Pressure: 90psi Air Inlet: 1/4NPT Air Hose: 3/8" Pad Diameter: 145mm Spindle Thread Size: 5/16"- 24UNF Item Number: TAR490-79