M7-QA210B | M7 Air Die Grinder FEATURES Quick Release Collet Metal Front Cap Safety Lever Throttle SPECIFICATIONS Collet Size: 1/4 Free Speed: 20000 RPM Air Requirements: 10 CFM / 90 PSI Inlet: 1/4 Overall Length: 190mm Rated Power:0.9HP Net Weight: 0.65kg Sound Pressure: 75.7 dBA Vibration Level: 0.8m/s