Four wings; Shank diameter: 8mm; Cutting diameter: 2 inch; Cutting length: 1/2 inch. With these bits, you can do floor, cabinet doors, etc. High Quality: Pointed tip, solid hardened steel body with anti-kickback design. Constructed with a heat resistant Teflon coating, can withstand heavy use and the test of time. Clean and neat surface: no sequins, precise, 4 wings allow for fast and clean cutting on your project material, excellent for projects of any level of complexity. Suitable equipment: engraving machine, cutting machine, etc. Use for handcrafting a drawer or other woodworking. Perfect choice of professionals and amateurs. Extremely Versatile: Designed to touch up or level the spoilboard surface. Suitable use for wood, particle board, such as: steel, sand, MDF, plywood compact board.