How to Make a Sheet Metal Punch

**Catfish** · Sep 25, 2019, 11:31 AM

How to make a sheet metal punch, I needed a 30 mm sheet metal punch. So I made my own from W-1, I do a shop heat treatment. The punch works great. I even engrave the parts for ID. There is Lathe work, Milling and Surface Grinding involved.

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**DIYer** · Sep 25, 2019, 08:29 PM

Thanks Catfish! We've added your Sheetmetal Punch to our Metalworking category,
as well as to your builder page: Catfish's Homemade Tools. Your receipt:

Sheetmetal Punch by Catfish

tags: sheetmetal, punch

**metric_taper** · Sep 26, 2019, 08:38 PM

What the heck at 30:53, a miracle occurs and you jump to the surface grinder. Looks like the setup clamp moved from excess vibration, but I'm guessing the material got hot from the lathe work and self heat treated. But that's a guess. Also the end mill is spinning a bit fast, at least for me.
If I understand the video, you removed all the material you were going to mill away on the surface grinder. That had to take an eternity.
Good to see you ended up with a working punch.