Drilling evenly spaced shelf-pin holes in your cabinet projects is much easier with my shelf-pin jig. I make mine from a couple of pieces of scrap – a large piece that forms the actual drilling jig and a second strip screwed underneath to serve as an edge guide. I insert 5/16″ T-nuts into holes in my jig to act like bushings for guiding the drill bit. Just pound them in and drill out the inner threads with a 1/4″ twist bit. If you ever need to change the hole spacing, just tap out the bushings and insert them into new holes.
– Bill Tanksley