Kreg KMA3215 Shelf Pin Jig Drill Bit (5mm) Cabinet Solutions Construction Glass-filled nylon

Construction Glass-filled nylon

but still lightweight

Adjustability Adjustable lens cursor

With modification

Kreg KMA3215 Shelf Pin Jig Drill Bit (5mm) Cabinet Solutions Construction Glass-filled nylonThis 5mm high speed steel drill bit replaces the bit that comes with the 5mm Kreg Shelf Pin Jig. Also works with the 1 4" (6mm) Kreg Shelf Pin Jig. This high speed steel drill bit allows you to drill 5mm shelf pin holes with the Kreg Shelf Pin Jig. This bit features an ultra sharp 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