Kreg R3 Pocket Hole Jig + 2 inch assembly clamp + 150 bonus DIY project screws Easily join materials from 1/2" to 11/2" thick (12-38mm) in 1/8" (3mm) increments Positioning sliders allow you to easily adjust within 9 depth settings Two hardened-steel Kreg drill bit guides feature a lifetime warranty Depth-collar gauge is molded into the case for handy reference Kreg KHC-Micro: 2" reach (51mm); clamps materials up to 21/4" thick (57mm); Compatible with Kreg Jig R3s Portable Clamp Adapter