【High Carbon Steel】: It has sufficient bending strength and wear resistance to ensure high work efficiency. The blue nano-coating keeps the knife edge sharp and sharp. Vital Lubricity has extremely high nanohardness and heat resistance. 【Material】: Using ultra-fine grain carbide with good milling performance, the ultra-fine grain carbide material has high hardness, high strength, high wear resistance and high bending strength. Excellent milling performance, high efficiency, smooth chip removal, stable and reliable. 【Advantages】: Cutting edge, milling, punching and flat edge, the surface is clean and tidy without interference. 【Application】: mold, plastic fiber, carbon fiber, hardwood, circuit board and other precision parts. Suitable for 3D embossing, cutting, engraving, slotting, milling, etc. [Cutting edge diameter]: 0.8-3.175mm (0.8/1.0/1.2/1.4/1.6/1.8/2.0/2.2/2.4/3.175mm), 10pcs