With a micrometer, you need a separate one for each kind of measurement, and their ranges are normally just 25 mm or 1". So, just for external measurements, you're looking at a set of 6 ...

For tasks requiring sub-micrometer precision — such as alignment, adjustment, or fine positioning — PI’s M-235, L-220, and ...

The Starett T444 Outside Micrometer comes from a company that has been making micrometers since 1880. It’s an analog model ...

A couple of years ago we published a look at precision measurement tools, in particular vernier calipers and micrometer screw gauges. It featured a look at how they work and how they’re used ...