Final drill skins?

[Ueli N]

Thank you everybody for your info. I was working on the AST's today.
Using a awl seems to do the trick, with a little pressure and twist of the
wrist makes the hole just large enough to wiggle the rivet in.
Don't know why I did not think of it myself.

[jlfernan]

I had problems with a lot of the holes, especially when going into thicker material. I made this tool out of a piece of a #30 drill bit insterted in a mini chuck. Run it through any holes you're having touble with and the rivets will go right in. If you take the straight end of a #30 bit, you'll see it's the exact size of the prepunched holes. With this tool you don't need to worry about elongating a hole twisting an awl in it.

[waterboy2110]

I've not had to final drill too many holes. What I've found is that the pull rivets are sometimes oval and a simple 90 degree rotation allows them to fit. If a section doesn't seem to fit well I re-cleclo it and that seems to be enough. I use clecos in every hole. I think I have more than 500 of them.

[RFSchaller]

I was able to use a punch to get all but a few holes correct. My fall back was to turn a #30 bit by hand, and as a last resort drill to match.