I need to trim the inboard edges of the wing skins to get the right gap for the seals. What tool works best? It's really slow going with a flat file.
My favorite tool for this is a Dremel with reinforced cut-off discs....BUT, make sure you practice on scrap first. It takes a little learning curve to do straight lines. Do NOT use non-reinforced discs. They will not take side loads and are very dangerous when they come apart.
