This core box bit features a rounded tip with a 1-1/8 radius and a 2-1/4 cutting diameter. The cutting length is 1-3/8 and the shank is 1/2. Highlights: - Route core box channels and grooves for decorative and general use - Premium C3 micro-grain tungsten carbide blades for a sharper & longer lasting edge - For use on CNC, table mount and handheld routers (Up to 2-1/2 diameter) - Silver induction brazing for maximum strength and durability - Center meeting blades for smooth profile cutting and plunging - Manufactured with anti-kickback design to help prevent workshop mishaps Item Includes: 1 Router Bit Core box bits have rounded tips that are perfect for routing channels in cutting boards and producing flutes in columns using solid wood or MDF. Our core box bits are available in various diameters, with a choice of 1/4 and 1/2 shanks. The smaller shank diameter works well in laminate trimmers, while the 1/2 shanks are ideal for deep cuts with full-size routers.