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 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.