Ok, now I know what he's referring to, but I have a DIY tool that does alright.
I made one using an old dull Lee trimming cutter stud, one of those before they made them of carbide. Then I threaded a stud to fit the cutter for each caliber needed, I slipped a small washer over the cutter so the mouths don't get accidentally buggered up. It has to be short enough to fit in the press frame. Then I use my priming die for something to press it against. Works good enough for my needs.
Seems like I'm constantly running into these new fan dangled tools that I've already made.
GS