BRAND NEW - 5" High Speed Air Sander! A perfect item to go along with your air compressor! Includes: 3 - resin fiber backing pads - 3" , 4.5" and 5" Features: Built-In Speed regulator Free Speed: 18,000 RPM Sprindle Thread: 3/8" ~ 24 Pad Size: 5" Air Pressure: 90 PSI Average Air Consumption: 4 CFM Air Inlet: 1/4" NPT Hose Size: 3/8" ID Side exhaust Great for removing rust!