Air Orbital Sander Vacuum Type Central Vacuum Product Type Air-Powered Gear Sander Disc Motion Gear-Driven Abrasive Mount Type Hook and Loop Motor Type Geared Duty Heavy Orbit Diameter 3/16 in Horsepower 0.5 hp Grip Type Extended Speed Settings Variable Air Consumption 23 cfm Required Pressure 90 psi Air Inlet Size 1/4 in Air Inlet Type NPT Minimum Hose Size 3/8 in Exhaust Location Rear Tool Series Dynabrade Gear-Driven Tool Length 11 1/16 in Tool Weight 4 lb