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Right, I was just highlighting the fact that globally we ARE still stuck with imperial system for shit that gets used daily! I can't fathom why we haven't moved to centimeters for rim measurements, and why so much machining is still done in thousandths of inch. There's also no good excuse as to why every lathe and CNC machine on planet earth has 1/2 in chuck keys instead of 13 mm, why ratchets use a 3/8ths drive instead of 10mm. It's just instilled from decades of use and nobody does anything about getting away from it in automotive or tooling! I'm sure there's lots of other weird leftovers in other fields, just naming the ones I work with on a daily basis. At least nobody is producing shit with whitworth standards anymore, although I do occasionally have the misfortune of having to work with that as well.