The first time I played with a pair of calipers, I was maybe 9
years old and following my dad around to a space satellite fabrication
facility. An engineer picked a pair of calipers up and showed me that it
was possible to measure the thickness of my hair.
Three thousandths of an inch thick. I thought that was pretty
cool.All that I had known before was measuring with a ruler, with
precision down to maybe a 1/16th, or maybe a 1/32nd of an inch. A good
pair of callipers can measure within .0005”. It’s a useful tool for
measuring thicknesses, inside diameters, outside diameters, and depth.
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