Product Description. [Accurate Size] CNC spoiler face milling cutter with 8mm shank, 51mm cutting diameter, 12.7mm cutting height. Quality MaterialMade of microcrystalline carbide blade and solid hardened steel system with good wear resistance and sharp edges, precise cutting reduces dirt and burrs, and has a bulletproof design. High-precision grinding technology for stability and efficiency. [Multipurpose] With 4 blades, you can cut your project material quickly and cleanly, clean the surface of your waste board or create a perpendicular base to the router motor, also suitable for deburring and grooving/gouging. Can be used to align live edge boards that are too large to fit through a planer and is ideal for projects of any complexity. [Wide range of applications]. These router bits are suitable for cutting solid wood, particleboard, plywood, MDF, and various synthetic materials. (Avoid cutting ferrous metals and non-wood materials such as steel, iron, and sand). [Suitable for CNC and other automatic milling machines, as well as portable and benchtop milling machines. wood carving machines, milling machines, etc.]