Features: 1.Long Durability: Made of cemented carbide, the durability is 10 times higher than that of high speed steel burrs and 200 times higher than that of small grinding wheels. 2.High Hardness: Rotary file has the advantages of high hardness and wear resistance, and basically does not deform even at extremely high temperatures, and can be used for a long time. 3.Main Application: Single cut rotary file is widely used in machinery, aviation, automobile, ship metal processing and DIY engraving, etc. 4.Multifunction: Widely used for metalwork, model engineering, wood carving, jewellery making, welding, casting, deburring, grinding and sculpting. 5.High Efficiency: Mainly used with pneumatic or electric drive tools, the speed is fast, and there is no dust pollution, and the production efficiency is high. Specification: Item Type: Carbide rotary file set_x000D_ Material: Carbide_x000D_ _x000D_ Kit Includes: L0616M06, L0822M06, L1025M06, L1228M06, L1430M06_x000D_ (The letters represent the international serial number of this product, the first two digits are the diameter of the cutter head, the third and fourth digits are the length of the cutter head, and M06 is the diameter of the handle with a diameter of 6mm)_x000D_ Application: Suitable for surface grinding of aviation, automobile, ship, etc.