Air Orbital Sander Vacuum Type Central Vacuum Product Type Orbital Sander Disc Motion Random Orbital Abrasive Mount Type Adhesive Motor Type Gearless Duty Heavy Orbit Diameter 3/16 in Horsepower 0.2 hp Speed Settings Variable Air Consumption 8 cfm Required Pressure 90 psi Air Inlet Size 1/4 in Air Inlet Type NPT Minimum Hose Size 5/16 in Arbor Hole Size 5/16 in Number of Vacuum Holes 6 Dust Collection Type Included Vacuum Ready Dust Collection Port Size 1 in