Different types of measurement

There are 3 different ways to measure with calipers.

1.Measuring the external dimension of a part.

EX: Measuring the side lengths of a cube.

2.Measuring the internal dimension of a part.

EX: Measuring the slot width or diameter of a circle in a part to confirm tolerances.

3.Measuring the depth of a part.

EX: Measuring to the bottom of a threaded hole to pick out the right sized bolt.