I recently have had to do some repair /replace work and I have had to do a lot of rivet removal. I thought I would share a little info on this subject    Most  of the rivets on Zenith Aircraft are the Avex blind rivets .  A4 or A5 in size I have found that the A5 are a little easier to remove that the A4s.  You just want to remove the head and not try to dill it all the way out . Most of the time…