Thanks for the responses so far guys - we will grind a few punches and try Mike's suggestion. Compositepro, I appreciate the undoubtedly correct input, but drilling doesn't help those of us who make punching machines ;)
Thanks again.
Hi forum users,
We are making a hand held punching machine to punch small (approx 3/16" dia) holes through 2 pieces of aluminum, one of which is .100" thick and the other is .060" thick - between which is a think layer of fiberglass material. It is a less than 2 ton punching requirement. The...