Level throttle; Die cast aluminum; Light weight; Ball bearing Features: Free Speed: 22,000 RPM Air inlet: 1/4" NPT Air Consumption: 4.0 CFM Air Working Pressure: 90 PSI Air Exhaust: Rear Color: Black matte paint Collect: 1/4 in. and 1/8 in. Overall length: 7 in. Body Diameter: 1-1/2 in. Grinder net weight: 1 LB, 4oz Include: 1pc- Air Straight die grinder (1/4in collet loaded) XQ-T02 1pc-1/8 in. collet 5pcs-Mounted stones with 1/4in shank 5pcs-Mounted stones with 1/8 in. shank 2pc wrenches for tighten chuck 1pc-Male Nipple 1pc-Plastic storage box .