[SIZE] - Shank Diameter: 8mm; Cutting Diameter: 3mm;/4mm/5mm, Cutting Depth: 12mm; Total Length: 55mm [MATERIAL] - The router bit is made of carbide material, strong and durable, has long service life. The full welding of the shank and the cutting head makes sure that there is no virtual welding. [GOOD CUTTING EFFECT] - After precision processing, the cutting edge is sharp, the cutting surface is smooth and has no burrs. [APPLICABLE MACHINE] - Fit for bakelite milling, engraving machine, cutting machine, hanging machine, CNC and other equipment machines. [APPLICATION] - Router bits are widely used to cut all composition material, plywood, hardwood and softwood. Perfect for routing, inlaying, mortising in wood and other soft materials, hand held and table mounted portable routers.