Feature:1. [Versatile 4 Piece Set] This wood plug cutter set includes cutters with outer diameters of 5/8 inch, 1/2 inch, 3/8 inch, and 1/4 inch, suitable for various woodworking applications.2. [Convenient Hex Shank Design] Featuring 1/4 inch hex shank, these plug cutters effortlessly attach to power tools, drill presses, and more for convenient and efficient use.3. [Carbon Steel Construction] Crafted from carbon steel, these wood plug cutter drill bits are highly sturdy, abrasion resistant, and ensure a long service life even with frequent use.4. [Seamless Wood Plug Fit] The cork can tightly fit, and the concealed screw holes drilled are safe and seamless, making the woodworking joints look smoother and more professional.5. [Compact and Portable] Lightweight and compact, these cork drill bits are easy to transport and store, making them a handy and versatile tool for woodworkers.Specification:Item Type: Wood Plug CutterMaterial: Carbon SteelDrill Bit Outer Diameter: Approx. 6mm / 1/4in, 10mm / 3/8in, 13mm / 1/2in, 16mm / 5/8inHex Shank Diameter: Approx. 6.35mm / 1/4inColor: Silver.Package List:4 x Wood Plug Cutter