Rotary and orbital motion for rapid removal as well as fine finishing . Power regulator for precise control. Lock off throttle to prevent accidental start ups. Insulated grip provides comfort to operator. Excellent for blending and smoothing filler, feather edging and pre-paint preparation Pad size diameter: 6", free speed: 10,000 RPM, average air consumption: 8 cfm, air inlet thread: 1/4" NPTF, minimum hose size: 3/8", sound dBA: 85, weight: 4.25 lbs.