Features: - Professional grinder kit giving complete flexibility for most grinding and polishing needs. - With small volume, light weight, high speed, low noise, small gas consumption, high concentricity and so on characteristics, the operation is simple, rapid and convenient. - It is widely used in all kinds of mold (shoes mold, tire mold, pen mold, all kinds of high and low voltage electrical appliances, household appliances mould, molded case switches mould, etc.), hardware products (water faucet, zippers, hardware tools and all kinds of complete sets of equipment cabinet, etc.), and glass, stone, handicrafts, ornaments, circuit board manufacturing and so on industry need blank shaping, cutting, grinding and finishing homework. Length of Grinder: 170mm/6.7in Chuck Size: 3 ~ 6.35mm Air Consumption: 6CFM Speed : 22000 r.p.m Recommended Air Supply: 90PSI Air Inlet: 1/4in BSP Package Includes: 1 x Air Die Grinder 2 x Wrench 1 x Collet Chuck 1/8in - 3mm 1 x Collet Chuck 1/4in - 6mm 5 x Shank Stones 1/4in - 6mm 5 x Shank Stones 1/8in - 3mm 1 x 1/4 inch Bayonet Quick Connect 1 x Carry Case