Metal Drawing Tungsten Carbide Milling Cutter Rotary Tool Burr Engraving Abrasive Tools Metal Milling Features : For most jobs, it can be replaced with a small grinding wheel and no dust pollution. High efficiency, high-quality finish, long service life, good economic returns. Easy to use, safe and reliable, can reduce labor intensity. Double chamber is crossover lines, not easy to lock lines, more suitable for object with relatively low material density. Processing all kinds of metal (including all kinds of hardened steel) and non-metal (such as marble, jade, bone). Specification: Material: Carbon Steel Shank Diameter: 3mmPackage Included: 10pcs CutterNote: Please allow 1-3cm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.