Replacement bit for the 1/4" Kreg Shelf Pin Jig. Also allows works with the 5mm Kreg Shelf Pin Jig. This 1/4" (6mm) high-speed steel drill bit allows you to drill 1/4" shelf-pin holes with the Kreg Shelf Pin Jig. Features a brad-point tip for exact centering and clean cutting so that you'll get smooth holes for shelf pins. The 1/4" hex shank tightens easily into standard drill chucks, and fits quick-change chucks and adapters.