Features: 1. This milling cutter is made of tungsten steel with good milling, cutting performance, ensuring high work efficiency. 2. It has sufficient anti-bending strength, wear resistance, high hardness, high wear resistance and high strength. 3. Sharp cutting edges, can be used for milling holes, grooves and edges on plates and the process will be smooth. 4. Well polished surface is quite clean, neat, and there is no glitches or burrs on the shank. 5. Many items or materials can be engraved, such as circuit boards, hardware parts, plastics, copper and stainless steel. Specifications: Material: Tungsten steel Type: Ball nose cutter Overall Length: 5cm / 1.97inch Shank Diameter: 4mm / 0.16inch Cutting Edge Radius: 0.5mm / 0.02inch Cutting Edge Diameter: 1mm / 0.04inch Blade Length: 2.5mm / 0.1inch Weight: Approx. 10g Package Includes: 1 x Milling Cutter Note: 1. Please allow 1-2mm error due to manual measurement. Thanks for your understanding. 2. Only milling cutter, no other stuff included. 1、This milling cutter is made of tungsten steel with good milling, cutting performance, ensuring high work efficiency 2、It has sufficient anti-bending strength, wear resistance, high hardness, high wear resistance and high strength 3、Sharp cutting edges, can be used for milling holes, grooves and edges on plates and the process will be smooth 4、Well polished surface is quite clean, neat, and there is no glitches or burrs on the shank 5、Many items or materials can be engraved, such as circuit boards, hardware parts, plastics, copper and stainless steel