Overall Diameter: 1-5/8"Overall Length: 3"Cutting Edge Length: 57/64"Shank: 1/2"Decorative Cut Depth: 1-5/8"Kerf: 1/4"Bearing Diameter: 7/8"Radius: 1/2"The Rail Bit Is Used For Doing Beading Profile Rail Cuts For Cabinet Doors And All Varieties Of Frame-And-Panel Assemblies For Furniture And Architectural ApplicationsProduces Tight Fitting Joints For Cabinet Door FramesMicrograin Carbide Tips Provide Superior Wear Resistance And Long LifeRecommended For Use With a Router Table