Use your 500-Series Pocket-Hole Jig to create compact pocket holes This unique Micro-Pocket™ Drill Guide Kit creates a 33% smaller pocket hole (15/16" long) that works great for smaller projects, thinner stock, and tighter repairs. Micro-Pocket™ holes work great in virtually every application where you’d use standard pocket holes, and are especially good for 1/2" (12mm) thick material and narrow stock, down to 1" (25mm) wide. Because the bit removes less material, drill strokes are faster and easier. Just insert the Micro-Pocket™ Drill Guide block into your Pocket-Hole Jig 520PRO, then use the Micro-Pocket™ drill bit to create the compact pocket holes. For use with 500-Series Pocket-Hole Jigs. Compatible with Kreg® pan-head pocket-hole screws.