Progressing with wing bottom skins

Continuing with fitting bottom skins, and elongating holes where needed to fit properly on the spar cap.

I’m using a round file to remove most of the needed material, and then using a #20 reamer to clean up the hole and ensure it’s roundish.  So far so good – I’ll do this to both bottom skins before I start pulling the rivets.

Left two holes filed down a bit, before reaming. Right hole is unmodified.
Finally have most of the rivet holes filled in, just a few more holes to fix.

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