I had a rivet come out of my aluminum boat this past duck season. I got a replacement rivet, a piece of steel for a backer, but need to make a punch to peen over the shank. I got the next size bigger rivet, so I can drill a new, clean hole, rather than use the old one that might be a little wallowed out, so can't use the measurements of the other rivets in the boat.
My question is, what diameter hole in the punch do I need to peen over a 3/16" diameter aluminum rivet?
Thanks.