[Material] - The wood router bit kit is made of hot-hardened carbide cutting edges and forged tool holders, high strength, high hardness, good wear resistance and strong impact resistance. [Various Sizes] - Arbor Diameter: 6mm; Cutting Length: 4mm/ 5mm/ 6mm/ 8mm/ 9mm/ 9.52mm/ 10mm/ 11mm /12mm/ 14mm/ 16mm; Number of Grooving Cutter: 11. [Precise] - The high-quality cutting router bit ensures professional and ultra-precise machining on wood. [Clean Cutting] - The router bit has clean cutting, stable rotation, fast operating speed, the cutting material has no burrs, and the use effect is perfect. [Suitable for] - The router bit can be used to groove a wide range of materials, including solid wood, MDF, particle board, plywood. Features: High quality alloy wood router bit for a sharper and longer lasting edge, high quality alloy steel body. Use this groove cutter for all straight cuts with carbide tipped blades. 2 sides. Can improve deep cutting and smooth edges. There are 11 different