M7-QA111A | M7 Die Grinder 25000rpm 155mm Long 3 & 6mm Collet FEATURES Metal front cap. Safety lever throttle SPECIFICATIONS Collet Size: 6mm & 3mm Free Speed: 25000 RPM Air Requirements: 10 CFM / 90 PSI Inlet: 1/4 Overall Length: 155mm Rated Power:0.3HP Net Weight: 0.38kg Sound Pressure: 81.5 dBA Vibration Level: 1.8m/s