STEEL PIPE FOR DUMMIES

In line with historic texts, the inch was very first identified from the 7th century as a way of evaluating wound depth. Its 1st Formal definition dates from 1324 – three grains of barley, dry and round, put stop to finish, lengthwiseBackground/origin: The term "inch" was derived within the Latin unit "uncia" which equated to "a single-twelfth" o