- Bore Gage
- Hole Gages
- Small Hole Gage
- Telescoping Gage
- See also: Gage Pins
Dial Bore Gage
Hole Gages
Small Hole Gage

To use a small hole gage, it it placed inside a hole and the thimble is opened until the fingers contact the sides of the hole. The gage is removed and the width of the fingers is measured with another measuring instrument such as a micrometer, height gage, or calipers.


Telescoping Gage
For larger holes, a telescoping gage can be used to transfer the diameter of a hole to a measuring instrument.

Bore Gage
See also: Gage Pins
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