Fowler and Vevor micrometers for hobbiest?

In order to measure a .0005 tolerance, you need .0001 resolution. Same goes for thousandths, if you want to measure a .005 tolerance you need a .001 reliable instrument. So it has more to do with relating two parts usefully, as we all do in the shop, more than it is with nominal precision such as the desire to make a part within a tenth of a print dimension. Nobody in non-production does that, as manual machinists we fit our parts and we need finer tools to measure the gap. That's why tenths instruments make sense.
 
I have plunge indicators in thou, tenths of a thou and one that measures in increments of 4 millionths of an inch (.0001mm). I have uses for each.
 
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