This 3 wing TENON saw blade is designed for quick and efficient cutting of three-wing tenons. This T-shaped blade has three blades and has a 1/4 inch shank that fits most standard routers and Dremel tools. It is made of high-quality C3 micro-grain carbide for maximum strength and durability. It is suitable for cutting wood, plywood, solid wood, MDF, particleboard, acrylic, etc. Cut a T-groove for hanging objects on the wall.