Taper gauges are used to check the taper and reference diameters of products with tapered bores or holes. This is a manual type of gauging system consisting of a set of gauges fitted together, namely, a plain taper plug gauge and a plain taper ring gauge.


The depth of a tapered bore that is to be evaluated, can be measured by how deep the reference end face fits into the gauge.

The optimum tolerance depth is usually indicated with a notch, or by a line drawn on the larger end face of the taper plug gauge.

Common Types Of Taper In Supply:

  • Morse Taper.
  • National Taper.
  • Brown & Sharp Taper.
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