Quote:
Originally Posted by Chiefy
I've started the teardown prior to replacing the floor in my '65 GT, now I'm starting to run into Rivets that need to be drilled out in the interior panels. I don't want to screw up and enlarge the rivet holes if at all possible, what drill bit size should I be going for?
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There are 3 drill bit sizes that are used on Airstreams.
#30, #21 and #11 are those sizes.
The #30 is used for 1/8 inch rivets, as used on the inside of the coach. That same size is used to drill out the buck rivets, on the outside.
The #21 is used when Olympic rivets will be installed.
The #11, is used for 3/16 inch rivets, such as used for the underbelly.
Andy