Air Finishing Sander Product Type Finishing Tool Abrasive Orientation Inline Minimum Drum or Wheel Diameter 5 in Maximum Drum or Wheel Diameter 5 in Horsepower 1 hp Duty Heavy Grip Type Dual Grip with Side Handle Speed Settings Fixed Minimum Drum or Wheel Speed 3 400 RPM Air Consumption 43 cfm Required Pressure 90 psi Air Inlet Size 3/8 in Air Inlet Type NPT Minimum Hose Size 5/8 in Spindle Thread Size 1/2 in - 20 Arbor Hole Size 5/8 in Tool Series Dynastraight