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CMT
program
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Dial Calipers are used to accurately measure sizes up to 6 inches.
The smallest increment of measurement is one thousandth of an inch (0.001).
Precision is listed as +/- 0.0005 inches.
How to read:
- Start by verifying zero with the jaws closed.
- Loosen the zero lock and adjust the dial to zero, then re-tighten.
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- Carefully open and close the jaws around the specimen.
- The typical method is to roll your thumb as shown.
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- Read it!
- Start by reading tenths of inches off the scale (0.8). It's between 0.8 and 0.9 in
this case.
- Next, read the red arrow on the dial. One revolution of the dial = one tenth of an
inch (0.1), so a dial reading of 67 = 0.067.
- Thus, the answer here is 0.867.
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