Quote:
Originally Posted by Sal
They may be tooling holes, possibly used for holding metal sheet in place when it was being stamped.
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Why would there be a need to hold sheet metal in place when being stamped?
That would mean there was a stamping die built to put the holes in and another to stamp something later. That makes zero sense.
I'd built more stamping dies than I care to recall - that's not how "it" works.