Milescraft 1316 CabinetMate Position & Drill Perfect Shelf-Pin Holes Every Time Creates wobble-free shelfs Easy to use Has a rigid main body, indexing pins and a self-centering, spring-loaded drill bit. Allows you to accurately drill eleven holes, evenly spaced at 32mm apart, in just one setting. This bit is pre-set to bore a crisp hole with consistent depth for a perfect fitting shelf pin.