[A1971Blazer]

Originally Posted by mongocanfly

71B, When you get you panels lined back up, take a drill bit the size of the spot weld holes, and square the end of it to look like a end mill...stick it in each hole and run with a drill to clean the weld thru primer out of each hole....itll make your spots much cleaner..

should I back it up on the inside with some copper bar to prevent burn thru?