Deburring HS rivet holes

I’ve given up on using deburring tools on the skins.  If I use it enough to remove the bur, I have the beginnings of a countersink, and that’s bad. There are too many stories of over-deburred holes on the internets.   I’m not going to be one of them.

I can deburr with nothing other than a maroon scotchbrite pad without enlarging the holes at all.  The only downside is no polished aluminum on the exterior.

Berck, Jonah: 1.5 hours.

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