I think the scale in the picture is a dual scale, with the top one being metric (cm and mm), and the bottom one inches. A "metricated inch" is an inch divided into tenths and/or hundredths.
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How long is a metric inch?
I think the scale in the picture is a dual scale, with the top one being metric (cm and mm), and the bottom one inches. A "metricated inch" is an inch divided into tenths and/or hundredths.