High quality material: Cemented carbide router bits, superior abrasion resistance; steel bits that meet the high demands of woodworking and hardware. Sharp and durable blade: The router bit set uses high quality alloy blade by heat treatment, sharp and durable, precision balanced for smooth operation. Product Highlights: 8mm Router Bit Use on CNC and other automatic routers as well as portable handheld and table-mounted routers; it is especially effective for flat surfaces. Easy to install: This countersink drill bit is easy to install and maintain, 5 different size types, so it is convenient that you can use it at any anytime, anywhere. A wide range of uses: This milling bit is an essen tool Feature: [SOLID AND HIGH HARDNESS ] This countersink drill bit is made of high quality steel, it is solid with high hardness, wear resistant and very durable. It is usually used on electric trimmers or engraving machines for wood engraving or cutting. [SMOOTH SURFACE] The surface of the wood processed by the cutter is smooth and without burrs, which is suitable hardwoods, softwoods, composite panels and other woods. So you can buy it with confidence. Specification: Material: cemented carbide Shank diameter: 8mm Product specifications: 12mm 16mm 19mm 22mm 25.4mm Package list: 5 Router Bits * Router Slot Cutters Note: The actual color of the product may differ from the photo due to light. There may be a slight deviation in product measurement