The unique design, durability and impact resistance ensure the sharpness of the blade, your number one choice in terms of quality. Hardened steel body with anti-kickback protection. Heat and construction resistant Teflon coating. High quality YG6 alloy for a sharper, longer lasting edge, precision machined carbide for clean, precise cutting and grooving for all species wood. This router bit set set is truly versatile for added convenience. Suitable for wood, MDF, chipboard, panels compact plywood; Please avoid cutting ferrous metals and other materials such as steel, iron, sand, etc.