Best why to make existing holes slightly larger in 2mm powder coated steel?
The existing holes are for m3 bolts but I need to use slightly larger screws and am worried about damaging the paint work. Will it crack/chip?
I was thinking of placing a think bit of scrap metal on top and using a hand drill. Or I could use a hand rotary tool so then I'm working on the inside of the hole.. Would these work or is there a better way?
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