At first I thought the old wood jigs would be more substantial. I kind of resented that they went to plastic. I am no longer disappointed. The hardened steel drill guides are lifetime guaranteed. The plastic housings are substantially made, and thick enough to be very durable. All in all, a nice set. You get a three hole, that comes mounted on the jig. In addition, a two hole and a single hole are included in the set. Pocket, rocket or whatever they want to call them, it covers all three sizes and options so your ready to take on the world of pocket hole joinery, whether you use the jig mounted on the portable clamp to anything models that are included.