This bullnose & cove window stool router bit will cut stock up to 1-1/8 thick and 9/16 deep. The bit's overall length is 2-15/16 and the shank is 1/2. Highlights: - Create window sills and stools - Premium C3 micro-grain tungsten carbide blades for a sharper & longer lasting edge - For use on table mount and handheld router - Silver induction brazing for maximum strength and durability - Manufactured with anti-kickback design to help prevent workshop mishaps Item Includes: 1 Router Bit Add a decorative edge to any window stool giving your window a custome trimmed look. A window stool is the wooden ledge that sits on the window sill which protrudes somewhat making a small shelf or mantle.