CMT 855.002.11 Drawer Lock Bit, 1/4-Inch Shank, 1-1/4-Inch Diameter 1/2-inch Cutting Length, Material 5/8 to 1-Inch thick, 1-49/64-inch Cutting Length. Produces strong, perfectly-fitting joints quickly and easily. Use on router tables only. You can make fine drawers, making sure that the corners fit well. Non-Stick Orange Shield Coating, Anti-Kickback Design, Equipped with Bearing. 2 SinterHip Hi-Density Industrial Chrome Carbide cutting edges for long-lasting performance.