I have several of the in-line fab flush mount quick change plates on my benches. Two of them hold a Dillon 550 and 650. The third one holds a small vice, an rcbs bench priming tool, a couple different rcbs presses, a Dillon super swage, and a forster co ax press, depending on what I am doing. I have a bunch of stuff mounted on the quick change plates, all neatly stored on the wall hanging brackets when not in use. Inline fabrication stuff is first rate, and they have been great to deal with.