The General Tools S31 Plug Cutter 3-Piece Set includes router bits with diameters of 3/8-inch, 1/2-inch, and 5/8-inch, perfect for creating plug holes in a variety of materials. The set is compact and easy to store, making it convenient for both professionals and DIY enthusiasts. The black color and sleek design add a touch of style to your tool collection while the high-quality construction ensures durability and long-lasting performance. Perfect for drilling precise and clean holes in wood, plastic, and other materials.