screw then spreads the legs to the correct dimension and provides the required, consistent feel that ensures a repeatable measurement.
* The lower caliper in the image has an adjusting screw that permits it to be carefully adjusted without removal of the tool from the workpiece.

Outside caliper

Outside calipers are used to measure the external size of an object.

The same observations and technique apply to this type of caliper, as for the inside caliper. With some understanding of their limitations and usage, these

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