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What are the parts of a digital caliper?

Shop for Digital Calipers
Labelled diagram showing the parts of a digital caliper

Digital caliper upper jaws

The upper jaws of a digital caliper are used for taking inside measurements such as the diameter of a hole or slot. The upper jaws of a digital caliper are used for taking inside measurements such as the diameter of a hole or slot.

Digital caliper lower jaws

The lower jaws are used for measuring outside dimensions such as width, length and diameter. The lower jaws are used for measuring outside dimensions such as width, length and diameter.

Digital caliper depth rod

The depth rod is used for measuring the depth of holes. It protrudes when the thumb screw is turned. The depth rod is used for measuring the depth of holes. It protrudes when the thumb screw is turned.

Digital caliper LCD display

 Precision measurements can be easily read from the LCD display. Readings can be displayed as either metric, imperial or fractional measurements. Precision measurements can be easily read from the LCD display.Readings can be displayed as either metric, imperial or fractional measurements.

Digital caliper main scale

As well as on the LCD display, the measurement taken is shown on the main beam scale. As well as on the LCD display, the measurement taken is shown on the main beam scale.

Digital caliper on/off button

The LCD display can be easily turned on or off using the on/ off button. The LCD display can be easily turned on or off using the on/ off button.

Digital caliper zero button

The zero button allows the user to set the LCD display to zero at any point. This makes the digital caliper a useful tool for taking comparative measurements. This feature also means that calibrating a digital caliper is very straight-forward. The zero button allows the user to set the LCD display to zero at any point. This makes the digital caliper a useful tool for taking comparative measurements.

This feature also means that calibrating a digital caliper is very straight-forward.

Digital caliper thumb screw

The thumb screw is used to precisely adjust the measuring faces of the caliper (both sets of jaws and the depth rod). When taking outside measurements, the thumb screw helps the user to get a tight grip on the material they are measuring. The thumb screw is used to precisely adjust the measuring faces of the caliper (both sets of jaws and the depth rod).When taking outside measurements, the thumb screw helps the user to get a tight grip on the material they are measuring.

Digital caliper metric/ imperial converter button

The user can convert their measurements from one measurement system to the other by pressing the mm/ inch button. Lock screw The lock screw secures the jaws into place, so the object you are measuring can be removed, and readings taken. The user can convert their measurements from one measurement system to the other by pressing the mm/ inch button.

Lock screw

The lock screw secures the jaws into place, so the object you are measuring can be removed, and readings taken.