1. Using ultra-fine grain carbide materials, with good milling and cutting performance, to ensure high efficiency. 2. The milling, hole and board edge are tidy and burr-free. 3. Made of high-quality carbide, has sufficient bending strength and wear resistance. 4. Used for PCB, SMT, CNC, mold, engraving, plastic, copper, stainless steel and other hardware processing. 5. 10pcs router bits can be used for a long time. Specification: Item Type: Milling Cutter Shank Diameter: 3.175mm Blade Diameter: 1.8mm Total Length: 38mm/1.5inch Color: Blue Material: Carbide Package Contents: 10 x Carbide Milling Cutter Head Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.