How staples are made.
https://www.youtube.com/watch?v=YFtdcaJ43w8
Previously:
https://www.homemadetools.net/forum/...3121#post77491
https://www.homemadetools.net/forum/...836#post102618
https://www.homemadetools.net/forum/...985#post120125
https://www.homemadetools.net/forum/...362#post116616