The Freud 99-764 Adjustable Rail and Stile Router Bit System is a high-quality power tool accessory designed for woodworking projects. With a 1/2-inch shank, this router bit system is compatible with 110-volt routers and features a distinctive red color. Made by the reputable brand Freud, this model is specifically designed for precision cutting and creating adjustable rail and stile joints in cabinets and other woodworking projects. Ideal for professionals and DIY enthusiasts alike, this router bit system ensures accurate and clean results with each use.