Tweet: Metric? Huuuge mistake. Not in this country. Find me a judge.
[Metrology] Calipers with 4 decimal places- Annoying.
I agree completely with this frustration. But I've actually had worse. I saw a set on sale at Harbor Freight one day for like $7. "Composite" calipers. Plastic is fine for what I had in mind: throw it in the tool bag for checking drill bits when they do it get put away properly, and other rough construction tasks ("what size is that pipe"; "hugging... looks like 2.5", but it's hard to tell with my tape measure"). But I didn't realize that it only had two digit precision! It's funny enough when a common fraction like 3/16" gets abbreviated as 0.188", but to take that to 0.19" makes things much more confusing for the main purpose for which I bought them.
Incidentally I was playing around on the Banggood app the other day (Banggood, for those who don't know, is a Chinese site that is trying to take on Amazon, and doing a pretty good job of it), and they had at least a dozen different digital caliper models in the 4-6" size range, all of which made Harbor Freight seem expensive. I ordered some for making simple readouts for my drill press, lathe tailstock, etc. There are video reviews of them on YouTube. Might be worth checking out??