These specialized notching bits were specifically designed for use with the Kreg Precision Beaded Face-Frame System. Features: * For rails and stiles that are a minimum of 2 inches wide * 1/2-inch shank * High grade carbide tip for extreme durability What"s In The Box: * Kreg PRS4215 3/8-Inch X 2-Inch Notch Cutter Router Bit