Introduction Grade: 5 stars Application : Automotive / Motorcycle / Boat Specifications: Wheel Diameter: 65mm x 13mm x 9.5mm Spindle Size: 3/8″-16 Free Speed: 16000 RPM Air Requirements: 5 CFM / 90 PSI Inlet: 1/4″ Overall Length: 315mm Rated Power: 0.9HP Net Weight: 1.39kg Sound Pressure: 90 dBA Vibration Level: 2.8m/s