Appearances: Episodes
Calipers are used to measure the thickness of an object. Frequently they are used to transfer the thickness of a piece of wood being planed to a measuring device (scale). They can also be used in woodturning to measure the thickness of a vessel. Norm usually uses them to transfer the diameter of a turned object to the spindle being worked. It's most effective holding it in one hand to the work while turning down the diameter of the spindle with a parting tool with the other hand.
Since a majority of the turnings that Norm does are multiples (table legs, for example) for which he needs to make duplicate turnings, it is fair to say that he uses a caliper on each of them (unless he's using the duplicator).
