High quality YG6 carbide burs and 45 steel handle. Features a high quality YG6 tungsten carbide blade for long lasting performance. Cutting Diameter: 12mm, 16mm, 19mm, 22mm, or 25mm. Shank diameter: 8mm. Widely used for reeds, grooves, veins, and general trimming where precise cuts are required. Ideal for cutting composites, plywood, hardwood, and softwood. Compatible with CNC machines, automatic routers, handheld routers, and desktop routers. Suitable for wood carving machines and cutting applications. Features: - Suitable for CNC, desktop, and portable routers - Round knives for cutting, forming, scoring, and general decoration Specifications: - Shank diameter: 8 mm - Cutting diameter options: 12mm, 16mm, 19mm, 22mm, 25mm Package includes: - 5 core box router bits - Colors: red, silver - Size: as shown in image - Quantity: 5 pieces