Frankford Arsenal Platinum Series Case Prep Center

Put it in a baking pan or on a cardboard/newspaper sheet, it gets messy. I put the shaving deflector on the top so the shavings fall out, otherwise they build up inside and get in the way.
It's is brutally simple, set the case diameter grabber first and with it off turn the holder so you kiss the cutter, then back off a scoosh and lock it down.
I've found the numbers match up correctly so I then turn on and kiss, measure, then adjust to the needed length.