No need to purchase a stuck case remover. A drill, tap, socket, and a few washers will do the same thing. Save you time and money if you already have the parts. Plenty of YouTube videos.
Only thing I'll say is adjust the die so the case doesn't go in the socket at all. I had to cut the bolt off to get the socket back because the case was too far inside the socket and i couldn't grip it enough to unscrew bolt.