What is a Bore Gauge?

The bore gauge is one of the most inexpensive and yet one of the most accurate ways to measure the inner diameter of a component. It is important to note that the bore dial gauge is a comparative tool where one can set the nominal value and measure the deviation from this nominal value while measuring the component. 

To understand the components of the Bore Gauge, we can take the Mitutoyo Bore Dial Gauge 511-701 as an example.  The Mitutoyo Bore Dial Gauge 511-701 has a measuring range of 18-35 mm.

 

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What are the components of the Mitutoyo Bore Dial Gauge 511-701?

  • Main stem of the Bore Dial Gauge
  • Gauge head, which has a spring-loaded plunger on one side and an interchangeable anvil on the other side
  • Set of anvils such as 18mm, 20mm and so on 
  • Set of washers which help us set up our desired size. 
  • This metric bore gauge can be fitted with any plunger dial gauge with an 8mm stem.

 

 

 

To know how to measure using the Bore Gauge, kindly have a look at our video:

 

 

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