Precision Size 8mm Shank CNC Spoilboard Surfacing Router Bit, 51mm Cutting Diameter, 12.7mm Cutting Height. Made of microcrystalline carbide inserts and solid hardened steel body for superior wear resistance and sharp cutting edges. High-precision grinding technology ensures stable and efficient performance. Anti-backlash design reduces vibration and improves accuracy. Features 4 blades for fast, clean cuts and smooth surface finishing. Ideal for surfacing spoilboards, creating flat base surfaces perpendicular to the router motor, trimming, slotting, and grooving. Can be used to flatten live edge boards too large for a planer. Suitable for various woodworking applications including solid wood, particle board, plywood, MDF, and other wood composites. Not intended for cutting ferrous metals or non-wood materials such as steel, iron, or abrasive substances. Compatible with CNC machines, automatic routers, handheld routers, and table-mounted portable routers. Also suitable for wood engraving and trimming machines. Specifications: Cutting Diameter: 51mm, Cutting Height: 12.7mm, Overall Length: 64mm, Shank Diameter: 8mm. Material: YG6 alloy cutter head, carbon steel cutter body (45# carbon steel), surface sputtered. Color: Yellow and silver. Weight: 105 grams. Includes: 1 x 8mm Shank Surfacing Router Bit. Safety Instructions: For industrial cutting and engraving use only. Store in protective case when not in use. Wear appropriate personal protective equipment during operation.