In the USA, thread depth is measured in 32nds of an inch. I bought this device because it promised fractional reading. What he does. That's good news. The bad news is that it reads fractions with an accuracy of 128 inches. So the display can show the 128th. 64th, 32nd, 16th, 8th and 4th. I don't have much trouble switching 4s, 8s and 16s to 32s in my head, but for some reason my 15 watt brain has to stop and THINK when I'm 64s and 128s should make -e. He just turned 32. Spring.
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