【Router Bit Size】Shank Dia 8 mm, 3 sizes blade diameter: 35mm, 38mm, 50mm. 【Premium Material】Made of hard alloy steel, high hardness, and the heat treated blade is sharp and smooth. With coated surface, it's rustproof and has a long service life. 【Widely Use 】45 degree lock miter router bit could be used for wood drawer door/ window/ flooring working in miter joint or parallel joint. This carbide joint router bit suitable for woods, MDF, particle board, plywood compact panel. 【Applicable Machines】Compatible carving tool, 8 mm shank diameter, which for a router table or desktop woodworking engraving machine, like CNC hand-held and table-mounted portable router. 【After-sale Service】WSOOX tools store provide affordale and quality woodworking tools for customers, if you have any questions about our router bits, please contact us feel free, and we will reply youw within 24 hours.