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by lh7777
886 days ago
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Confusingly, "Thou" (thousandth) and "mil" (mille, Latin for thousand) are the same thing: 0.001". Thou is definitely more common, but mil persists for film thickness, e.g. 4 mil trash bags are made from 0.004" plastic film. In precision machining, you'll also hear "tenths" (one tenth of a thou or 0.0001"). |
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