Features: Made from cemented carbide material with good milling, cutting performance, ensuring high work efficiency. Have sufficient anti-bending strength, wear resistance, high hardness, high wear resistance and high strength. Sharp cutting edges, can be use for milling holes, grooves and edges on plates and the process will be smooth. Well polished surfaces are quite , neat, and there is no glitches or burrs on the shank. Many items or materials can be engraved such as circuit boards, plastics, carbon fiber and hard wood. Specifications: Material: Cemented carbide Surface Finishing: coating Length: 37mm (1.45") Shank Diameter: 3.175mm(1/8") Cutting Edge Diameter: 0.8mm/1.0mm/1.2mm/1.4mm/1.6mm/1.8mm/2.0mm/2.2mm/2.4mm/3.17mm Cutting Edge Length: 12mm(0.47") Package Includes: 10 x End Mills