Adjustable power regulator for precise control. Lock off throttle to prevent accidental start up. Excellent for tire scuffing, cleaning tire moldings, general high speed polishing and grinding. Rear exhaust directs air away from the work piece. Free speed: 22,000 RPM; average air consumption: 6.5 cfm; air inlet thread: 1/4" NPTF; minimum hose size: 3/8"; sound dBA: 101; length: 5.75"; weight: 1.25.