10 Facts About Bore gauge

Bore gauge is a collective term for the tools that are unique to the process of accurately measuring holes.

Small-hole gauges require a slightly different technique to the telescopic gauges, the small hole gauge is initially set smaller than the bore to be measured.

The Bore gauge is then removed and measured with a caliper or micrometer.

The Bore gauge has three symmetrical anvils that protrude from the Bore gauge body that are connected to the dial or micrometer mechanism.

Dial bore gauge is a comparative instrument similar to a telescoping gauge, but includes a digital or analog readout.

The dial bore gauge must be set to the nominal value of the bore, and it will measure the variation and direction of the bore from nominal.

The more accurate setting options include ring gauges and designated bore gauge setting equipment that utilize gauge blocks or other standards.

Dial bore gauge has a contact needle that is housed inside the head of the dial bore gauge.

The head of the gauge is then inserted into the bore that is being measured.

Once inserted in the bore, the gauge can be slightly tilted back and forth to produce measurements.