General description The 8mm Shank Matched Tongue and Groove Router Bit Set features a robust design ideal for woodworking. Made from super-hard tungsten steel, these industrial-grade router bits are engineered for precision and durability, making them an excellent choice for both professionals and DIY enthusiasts. Technical specifications Shank diameter: 8mm Blade material: Tungsten steel Number of teeth: 3 Body construction: Solid hardened steel Coating: Heat-resistant Teflon Usage This router bit set is suitable for cutting various materials including wood, MDF, particleboard, and plywood. It is designed to provide clean and precise cuts, ensuring high-quality results in your woodworking projects. Please avoid using these bits on ferrous metals and other materials such as steel and iron.