Vermont American 23148 1/4-Inch Radius Carbide Tipped Ogee with Fillet Router Bit, 1/2-Inch Ball Bearing 1/4-Inch Shank Razor sharp cutting edge diamond honed for smooth cuts Triple tempered shank for maximum durability Industrial micrograin carbide for smooth cut Produces 3 cuts Graceful ogee lines can be accented by 1 or 2 fillets by lowering depth setting or 3/8-Inch bearing