I got this kit for Christmas (best wife ever). I have owned an earlier version (Model K2000) for several years. This kit is impressive. The stock clamp in front took a little time to get used to, only because my old one is in back. It has two pistons, which should give it more holding power. If you are making a lot of pocket holes, the vacuum attachment is a must. My older one didn't have one, so I had to jury rig one each time with tape! The kit comes with the normal sized jig, which you use for most normal work, such as 3/4" stock. It also comes with a smaller diameter jig for 1/2" wood, which can easily be interchanged. And, it comes with a larger diameter jig for 1-1/2" material. I never really used my jig for 2x material because the screws seemed too small in...