The blade is subjected to high-frequency welding technology, and the cutter body is made of super-hard tungsten steel, which is extremely hard, strong, and sharp. . The complex process technology improves wear resistance and greatly increases the service life. . The unique design, super hardness, and impact resistance ensure the sharpness of the blade, which is your first choice for high quality. . Industrial-grade router bits. Solid hardened steel body with anti-kickback design. Heat-resistant Teflon construction and coating. . Suitable for wood, MDF, particleboard, plywood. Please avoid cutting ferrous metals and other materials such as steel, iron, sand, etc. .