I use a " circle and round disc cutter set" to punch round holes/discs/washers in thin Aluminum and Copper , it might help you with what you're planning to do:
It looks like all the punch sets that work like yours (punch guide and die bolted together, separate loose punches) have pretty much the same depth problem. Whitney-style punches, such as
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.