[ Material ] - The woodworking router bit kit is made of hot-dipped carbide cutting edges and forged tool holders, high strength, high hardness, good wear resistance and strong impact resistance. [ Different sizes ] - Shaft diameter: 6mm; Cutting length: 4mm/ 5mm/ 6mm/ 8mm/ 9mm/ 9.52mm/ 10mm/ 11mm /12mm/ 14mm/ 16mm; Number of groove cutters: 11. [ Precise ] - The high-quality cutting router ensures professional and ultra-precise machining on wood. [ Clean cut ] - The router bit has a clean cut, stable rotation, fast running speed, the cutting material has no burrs, and the use effect is perfect. [ Suitable for ] - The router bit can be used to cut a wide range of materials including solid wood, MDF, particleboard, plywood. Features: Cut a high quality alloy wood for a sharper and longer lasting edge, high quality alloy steel body. Use this groove cutter for all straight cuts with 2-sided carbide blades . Can improve deep cut and smooth edges. There are 11 different specifications of woodworking alloy router bit to meet all your operational needs, helping you quickly and accurately cut the pattern you want. Extended router bits can cut smooth wood, works for slotted and wood screw holes. Specification: Material: Tungsten Carbide Alloy. Color: Green. Shank Diameter: 6mm. Cutting Diameter: 4mm/ 5mm/ 6mm/ 8mm/ 9mm/ 9.52mm/ 10mm/ 11mm /12mm/ 14mm/ 16mm. Package Included: 11x Grooving Cutter Note: 1. Please avoid cutting ferrous metals and other hard materials, steel, iron, etc. 2. During the operation, take appropriate protective measures to prevent wood chips from damaging the eyes.