High quality: The sharp carbide drill bit is made of solid hardened steel with an anti-kickback design. Precise cutting reduces debris and burrs. High precision grinding technology, stable and efficient. Great replacement tool for woodworking. Precision size: 1/2" Shank CNC Spoilboard Surface Cutter Router Bit Cutting Diameter: 2 inches; cutting length: 1/2" and 11/16". 3 Bla-de design, with a larger cutting diameter of 37mm/59mm, perfect for rapid material removal on large areas with excellent finish on the surface. Total length 61/81 mm, longer shank than others. Multi-function: This professional bottom cleaning cutter is not only perfect for flattening wooden slabs, resurfacing or planing the top surface of the spoilboard , but also for cutting and grooving. Great replacement woodworking tool Practical: The surface planer cutter with 3 wings and 2 wings, use on CNC and other automatic routers as well as portable handheld and table-mounted routers . Such as wood engraving machine, cutting machine. Wide applications: suitable for solid wood, MDF, laminate, particle board, plywood compact board, acrylic , etc. Avoid cutting metal materials and not wood.