Rivets

Finally removed the rivets holding on my old VHF mounting plate to the top of my mast. Had to drill off the rivet heads and then tap out the rivet pins. Because the rivets were stainless steel rather than aluminum I needed to buy a cobalt drill bit for the job and run the motor at low speed. It took about 25 minutes to drill out 3 rivets and it looks like it used up the drill bit by the end.