KREG SHELF PIN DRILLING JIGKreg KMA3220 Jig Shelf Pin 5mm Kit If youre adding shelf pin holes to an existing piece of furniture or building shelves from scratch, the Kreg Shelf Pin Jig KMA3220 is the perfect tool for the job. Unlike other shelf pin guides, the Kreg Shelf Pin Jig features hardened steel drill guides which ensure precise and straight drilling, so you get solid 4 corner secure shelving. The Shelf Pin Jig also includes a dual position adjustable fence for custom