Unclenick, if you're reading this thread, note your die calibrators were also exactly what I made back in the 1960's.
Took a lock ring with one pasted on to the RCBS table at an NRA convention some years ago and the rep said that was a great idea. I suggested they stamp all their 7/8-14 thread lock rings with the .002" scale on one side and the .004" scale on the other. 'Twould be easy for most folks to just twist one relative to a given point on the die threads (mark the index point with a black marker) to make the adjustment. To date, they've not done this. Nor has anyone else as far as I know.
Folks making one today could print it on sticky back paper so it could be stuck on their lock rings.
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