20in1 Tungsten Carbide Rotary Burr bits set 3mm Shank for Rotary tool DIY Metal/Woodworking/Carving/Engraving

Description: Tungsten steel milling cutters, rotate the file 3mm cutter 3mm Shank Diameter, 3mm Cutting Edge Diameter shape of the handle Carpentry, iron products. Sculpture professional tools Cemented carbide rotating file, and tungsten steel rolling a knife, tungsten carbide grinding head, in overseas is already promotion use, is to improve the production efficiency and achieve fitter mechanical work is a kind of important tools. Cemented carbide rotating file a wide range of USES, in mechanical, aviation, automobile, shipbuilding, chemical industry, technology and industry departments use carving, the effect is remarkable, main use: (1) finish machining of various kinds of metal mold cavity, such as processing shoes mold, and so on. (2) Mos kinds of metallic and nonmetallic the craft sculpture, such as mould sculpture, craft gift of trimming. Cemented carbide rotating basically has the following file features: (1) the processing of metal (including a hardened steel) and nonmetallic (such as marble, jade, bone), processing can be as high as HRC70 hardness. (2) in great part of the work can be replaced on the handle with small grinding wheel, and no dust pollution. (3) high production efficiency, with high machining efficiency than file several times, with little grinding wheel handle than with high efficiency nearly 10 times the processing. (4) product processing of good quality and high polished, can work out of high precision of various shapes the mold cavity. (5) long service life, high speed steel paper cutting tools than the durability ten times higher than the small grindin