1Made from tungsten carbide material with good milling, cutting performance, ensuring high work efficiency 2Have sufficient anti-bending strength, wear resistance, high hardness, high wear resistance and high strength 3Sharp cutting edges, can be use for milling holes, grooves and edges on plates and the process will be smooth 4Well polished surfaces are quite clean, neat, and there is no glitches or burrs on the shank 5Many items or materials can be engraved such as circuit boards, plastics, stainless steel and copperFeatures: Made from tungsten carbide material with good milling, cutting performance, ensuring high work efficiency. Have sufficient anti-bending strength, wear resistance, high hardness, high wear resistanceand 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 clean, neat, and there is no glitches or burrs on the shank. Many items or materials can be engraved such as circuit boards, plastics, stainless steel and copper. Specifications: Material: Tungsten carbideShank Diameter: 3.175mm(1/8") Length: 38mm (1.49") Cutting Edge Diameter: 1.0mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm Quantity: 2pcs each type Package Includes: 10 x End Mills