Ohh I know. I have been part of dozens of extractions. Both for practice and for real.
And a spring punch takes no force at all.
And a spring punch takes no force at all.
You'd be happy with any glass breaking seat belt cutting tool, in the scenario you describe above.
As mentioned in the link, we mostly just made the tungsten core glass breaker for the Glock, because we could. It was a fun project with a spectacular result.
I carry the RAPTOR myself.
Ive tested both; it actually doesnt take much force to break a window, if you have the technique down pat and know where to aim.