Feature: 1. Premium Material: Rotary file is made of cemented carbide material, high temperature resistant, high strength, not easy to deform or bend. 2. Durable: The working life of rotary burr is 10 times longer than high speed steel and 200 times longer than grinding wheel. 3. Package: 5pcs different double cut carbide rotary files, easy to grasp and use, convenient and practical, meet your different needs. 4. Excellent Performance: Professional manufacturing, exquisite workmanship, high efficiency, high accuracy, stable performance and high reliability. 5. Wide Application: Carbide burr set is suitable for surface grinding of aviation, automobile and ship, has a wide range of application. Specification: Item Type: Carbide Burrs Material: Cemented CarbideSet Includes: GX0616M06, GX0818M06, GX1020M06, GX1225M06, GX1425M06 The letters represent the international number of this product. X means double cut, the first two digits are the diameter of the tool head, the third and fourth digits are the length of the tool head, and M06 is the diameter of the tool handle (unit is mm). Application: Suitable for surface grinding of aviation, automobile and ship, etc.. Package List: 5 x Carbide Burrs