If you want a feel for metrology and you’d like some of those heritage tools that parents pass onto their kids then it’s time to learn something about the vernier caliper and the micrometer.

Laser micrometer data systems are also capable of checking the tolerance status and similar specification requirements of the analyzed material. The four main types of laser micrometers include ...

A couple of years ago we published a look at precision measurement tools ... exactly like the others I tested in 2020. So my nine dollars or so has got me a micrometer, but is it any good?