Originally Posted by metalmuncher
I can read/use scales, rulers, tapes, calipers, micrometers, dividers, telescoping gauges, bore gauges, vernier scales, framing squares, multimeters, thermometers, compasses, maps, height gauges, face clocks, etc. etc. etc., and even books. But I'll admit, I don't have a clue without using google about how to measure my head for a hat.

Diameter tape. We use them daily at work.