Like everyone else said, about all you should need to add is wood. Since you have the 690 you should also be good to go with the baseplate but you can check it. The hole in the baseplate should be 1-3/16" in diameter with a 1-3/8" counterbore around it. You might want to pick up a centering pin though, I doubt those come in the kit.:smile:Hey guys I just ordered a porter cable 4212 and am wondering if I need to buy a guide bushing kit or a base plate. It comes with 1 or 2 bushings but I'm not sure that's all I need. So what all is needed to start cutting dovetails? I have a pc 690. Thanks!