A caliper is a tool that provides measurements with an accuracy of 0.02 millimeters. Whether you're using an imperial or a metric caliper, the methods for working with them are quite similar.

Part 1

Step 1. Ensure the object being measured is clean and flat.

Step 1

Step 2. Open the caliper and wrap it around the object being measured.

Step 2

Step 3. Gently press the caliper against the object.

Step 3

Step 4. Tighten the screw to keep the caliper in place.

Step 4

Step 5. Locate the small digit 0 on the caliper scale.

Step 5

Take note of how many divisions the zero has passed.

Step 6. Count how many smaller (numbered) divisions the zero has crossed.

Step 6

This number represents tenths of a centimeter, adding to the whole centimeters.

Step 7. The small divisions crossed by the zero after the last numbered division indicate hundredths of a centimeter.

Step 7

Step 8. Find which scale line on the caliper aligns best with a division on the scale.

Step 8

This value indicates thousandths.

Step 9. Add all the obtained data to get the final measurement accurate to the thousandths.

Step 9