Awesome! I can't imagine it wouldn't be a 300 series, 303, 304, 312, etc. I've seen some others like 327/347 but I've never run into them other than on manufacturer's sites.

I actually came up with a design based on yours but using a pair of 24" bolt cutters with custom made jaws. Same action that can cut a hardened bolt ought to be able to put enough force to deform 1/16" stainless...

Waiting on him to get back into town, his nephew was supposed to get me the raw materials, but the kid is kind of a dunce.