I friend of mine is bringing over his boat so we can drill 1 1/8inch holes
in his boat for pole holders.

This is a boring ol' fiberglass boat, but I figured I'd post a question to
you experts for some suggestions to make sure it goes well.

Could you give us any suggestions/warnings/hints about drilling into
fiberglass to make sure it goes well.

Any help would be greatly appreciated.

Thank you, from a novice boat builder