8x32 brass screw in trimmer blade pilot hole, primer pocket head threaded on.

need video

Basically just spin the handle as you would if you were trimming, but hold the ass end of the case against the pocket reamer. Doesn't take much to remove the crimp and it beats doing it by hand.

Definitely worth the quarter. Looks like it works good.

I just put my primer pocket uniformer in my drill.

I just sit down to watch some TV with two bowls. One empty and one full of cases that need the crimp removed. And my little crimp remover gizzie. Next thing I know, the empty bowl is full, the full bowl is empty, and I'm done.