The Yonico 12122 Glass Door rail and stile router bit will make glass doors with one reversible router bit. Use with up to 1″ Stock. Made with C3 micrograin carbide, Yonico router bits will endure multiple use providing a smooth and detailed finish Every time. Glass doors enhance formal dining room furniture and curios and are an excellent way to dress up your kitchen. Two flute carbide cutters and 1/2″ Shank.