Features:Professional grinder kit giving complete flexibility for most grinding and polishing needs.Quick chuck design, chuck can be quickly converted between 3mm-6mm(1/4inch-1/8inch).Lightweight aluminum alloy housing, high quality and durable, long service life.Comfortable ergonomic design, suitable for hand-held homework.Quality bearings for smooth and powerful operation, high accuracy.Lock-off throttle to prevent accidental start up, safe to use.Supplied with spanner and adapter for easily operate.Widely used in all kinds of mold, hardware products, glass, stone, handicrafts, ornaments and industry need blank shaping, cutting, grinding and finishing homework.Specifications:Material: Aluminum AlloyMain Color: Silver + BlackR.P.M: 25000RPMAir Consumption: 80L/MinChuck Size: 1/4inch(6mm),1/8in(3mm)Air Inlet(N.P.T): 1/4inchWorking Air Pressure: 6.2barExhaust: RearLength: 155mm/6.1inPackage Weight: approx.882gPackage List:1 * Air Die Grinder2 * Spanner1 * Air Inlet Connector5 * 3mm Grinding Head5 * 6mm Grinding Head1 * 3mm(1/8") Chuck1 * 6mm(1/4") Chuck