Features: 1.Multi Uses: Rotary burr set is widely used for tool making, engineering, wood carving, welding, chamferring, casting, deburring, grinding, sculpting, etc. 2.Wide Application: Rotary burr files are suitable for aviation, automobile, ship, boats, industrial engineering and so on, safe and dependable. 3.Different Size: The package includes 5pcs carbide rotary files, they have different sizes to meet the different working situations, practical tools. 4.Carbide Material: Rotary burr bits are made of heat treated carbide, high strength, high temperature resistant, durable in use, not easy to break. 5.Easy Operation: Grinding burr head can be used with handheld electric or pneumatic tool, helping you get things done more easily and quickly. Specification: Item Type: Rotary Burr Set Material: Carbide Set Includes: G0616M06, G0817M06, G1020M06, G1225M06, G1425M06 Letters represent the international 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 cutter handle (unit is mm) Applicable Models: Suitable for aviation, automobile, ship surface grinding, etc.