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@Dutch_Cheese
It's possible to recut thread in case the inner diameter of the new threading is larger than the old one.
E.g. it's perfectly possible to cut italian threads into a BB shell with ruined english threads.
Especially if there is a frame builder with a tapping machine. With hand taps, it may cost more energy (and perhaps ruining expensive tools).
But french threading is slightly larger than english, so it will not work.
You can try italian threading.