Suitable scope: Fitted with air volume fine control speed, planishing, chamfering, derusting, welding joint finishing. Features: 1) Model: SL-102 (104) 2) Rotation speed: 11, 000rpm 3) Diameter: 100mm 4) Length: 225mm 5) Net weight: 4lbs 6) Average air consumption: 6cfm 7) Pressure: 90PSI 8) Air inlet: 1/4"