Put some extra weights on your wheels, put too much tension on your equalizer bars, and drive down Interstate 5 in California. That should do the trick.
Just kidding.........
I go with Andy's #30 drill bit. Check to see that the "nail" that is in the center of the rivet is not protruding. If it is, use a small pin punch to drive it in a little so that the drill bit does not slip from the center of the rivet head and damage the inside surface of your trailer.
If you take tap putty knife between the sheets to be removed, any slips are in the under sheet not the top, where it would show if you slip with the drill. Just how you look at it.
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