HIGH QUALITY - The router bit is made of high quality tungsten steel for high hardness and long life. EFFICIENCY - The sharp, precision-machined, high-quality steel blade provides clean and precise cuts on wood. SIZES - There are many different diameters and cutting angles that you can choose for different uses. V-GROOVE - The V-Groove Wood Milling Cutter is ideal for grooving many parts in woodworking projects. APPLICATION - This is a nice tool to have and use for professional carpenters and hobbyists. Features: This is a great tool for the novice woodworker or anyone who needs a tool. It is a pleasant tool to use and use for carpenters and hobbyists, keep the tool clean, remove resin, wood chips or other dirt on the wood after use, apply a small amount of oil to Prevent the surface of the tool co.ukom rusting, clean the spots on the handle of the tool, and prevent the phenomenon of slipping when using. Specification: Material: tungsten carbide Shape: V-groove Shaft diameter: 6mm