Description: 4-Flute Wood Planer Bit 76mm Cutting Diameter 12.7mm Shank Spoilboard Surfacing Router Bit. This professional bottom cleaning router bit is not only perfect for wood slab flattening, resurface or plane the top surface of the spoilboard, but also for trimming and slotting/grooving. The surfacing router bit utilizes 4-sid solid carbide inserts. All 4 edges can be used, use a screwdriver(include) to make other blade edge outside. Replace the carbide inserts when needed, instead of replacing the whole bit. Cost effective solution compared to brazed router bits and solid carbide spiral bits. Suitable for woods, mdf, laminate, particle board, plywood compact panel, acrylic and etc. Avoid cutting metal and non-wood materials; Used on soft and hard woods, particle board, MDF, plywood compact panel, laminate, acrylic and etc. Specification: Material: Tungsten Steel Size Chart: Shank: 12.7mm/1/2" Cut diameter: 76mm/3" Package Includes: 1 Piece Surfacing Router Bit Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!