Just built this miter key jig tonight, I havent used this yet but I hope it works…haha. Got ahold of some veneered MDF that was headed for the dumpster I hated to use it for this but I wanted it to be straight and sturdy so I went with it. I have seen many different styles of these and although I have never used one I decided on this because I have access to two different table saws (dont have one of my own yet) so I couldn’t make one that rides in the “miter grooves” on the table saws cause they are different. This one just rides against the fence, as you can see in the first pic the piece that is to the right runs the fence, so I can use it with any saw. Comments?