Vernier Calipers

The vernier calipers are also used for measuring very accurate sizes except the vernier caliper can measure internal sizes, depths and external sizes. Vernier calipers can accurate to +/-0.05 mm

How to read a vernier scale

Reading the vernier scale can be tricky to start with but once you get the hang of it you will be able to quickly and accurately check the size of your work making sure you are producing work to tolerance. There are two guides below. Have a look at both to see which you understand best.