Features Made from tungsten carbide steel with good milling and cutting performance, ensuring high working efficiency. Have sufficient anti-bending strength, wear resistance, high hardness, high wear resistance and high strength. Many objects or materials can be engraved such as circuit boards, plastics, copper, etc. Sharp cutting edges can be used to mill holes, grooves and edges on plates and the process will be smooth. Well polished surfaces are pretty clean, sharp and there are no pips or burrs on the stem. Features: Material: Cemented carbide steel Cutting edge diameter Cutting edge length0.5 mm 1.8 mm 0.6 mm 1.8 mm 0.7 mm 2.7 mm 0.8 mm 3.5 mm 0.9 mm 4.5 mm 1 mm. 5.5 mm 1.1 mm 6 mm 1.2 mm 7 mm 1.3 mm 8 mm 1.4 mm 8 mm Shank Diameter: 3.17 mm (1/8") Total length: 38±0.1mm Features: Made from tungsten carbide steel with good milling and cutting performance, ensuring high working efficiency. Well-polished surfaces are quite clean, sharp and there are no pips or burrs on the rod. Have sufficient anti-bending strength, wear resistance, high hardness, high wear resistance and high strength. Many objects or materials can be engraved such as PCBs, plastics ticks, copper, etc. Package includes: 10 x End Mills Note: The color of the cap is random, please take the real one as standard. Package List