Ronald Sutton
Member
When drilling out pop rivets, first take a prick punch and gently tap the center mandril down past the head of the main shank of the rivet. Then take a shank-sized drill of the rivet and drill the rivet head down to the mandril. Then, with a punch, break the head off the rivet. Take the same size punch and gently tap the rest of the rivet out of the hole.![Wink ;) ;)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)