S31 Plug Cutter Set comes with 3/8 in. , 1/2 in. and 5/8 in. plug cutters. Whether you're building cabinets, toys, decks, furniture or railings, wooden plugs are a neat way to cover up the screw heads. Plug cutters are also great for creating a decorative effect in any woodworking project and can also be used to repair nicks, scratches and dents. Each cutter is made from hardened alloy steel and will fit in both hand-held power drills and drill presses. This General Tools cutter set will cut a 3/8, 1/2 or 5/8-inch plug from any stock up to 3/4 in. thick, from pine to oak, and eject it, whether it's chucked in a press or hand-held drill.