Vernier Gauges

What is a vernier gauge?

A plain, dial or digital vernier (or caliper) will give a direct reading of a distance measured, to high degree of accuracy.

  • One of the most useful measuring devices, used for generations in many types of industry
  • All are functionally identical, with different ways of reading the result. These calipers comprise a calibrated scale with a fixed jaw, and another jaw with a pointer, that slides along the scale
  • The distance between the jaws is then read in different ways for the three types
  • Verniers can measure internal dimensions (upper jaws) and external dimensions (lower jaws ) and in many cases depth by the use of a probe that is attached to the movable head and slides along the center of the body
  • This probe is slender and can get into deep grooves that may prove difficult for other measuring tools
  • Many vernier gauges include metric measurements on the lower part of the scale and imperial measurements on the upper, or vice versa
  • Verniers differ in their precision of measurement. Most commonly, verniers can measure to within 0.01mm (10 micrometers) or one thousandth of an inch

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