Millimeter Conversion and ± 0.2mm Accuracy

Five stars for working right out of the box. Battery included!

This is a handy fast tool for measuring difficult diameters on tubes, bolts, nuts, lids and just about anything tubular or round. You can also use it to measure the thickness of wood or metal. Loads of uses. Can even measure my big mouth with it!

I like these electronic digital calipers. The jaws move easily, the numbers are large, bright and easy to read. There is a choice of metric or inch measurement.

It comes with a 24 month warranty. So far it seems quite durable for long lasting use.