Feature: 1. It is widely used for engraving, drilling, milling and cutting of hardwood, plywood, acrylic, plastic fiber, resin, PCB and other materials. Especially suitable for 3D relief and complex 3D carving. 2. The spherical nose is used for engraving curved surfaces, and it is easy to remove chips, which is very suitable for 3D engraving. 3. The nano‑blue coating enhances the hardness, thereby prolonging the service life, and the drill bit is more durable and wear‑resistant. 4. The cutting edge is sharp, the surface is free of burrs, and the ultra‑fine cemented carbide material can ensure its engraving and milling performance. 5. It is made of tungsten steel, with high hardness, good strength and toughness. Specification: Condition:100% Brand New Item Type: Milling CutterMaterial: Tungsten Steel Color: Blue Total Length: Approx. 38mm / 1.5in Shank Diameter: Approx. 3.175mm / 0.1in Edge Length: Approx. 8mm / 0.3in Bit Diameter: Approx. 3.175mm / 0.1in Quantity: 10pcs. Package List: 10 x Milling Cutter