On Thu, 22 Oct 2015 16:32:38 -0400, wrote:

You buy a "combo set". SAE and Metric. I have sockets and wrenches
in combo sets. It ticks me off American made cars require both.

Most current "american" cars are fully metric, but they use the
oddball 13mm and 11mm etc that are almost identical to SAE sises (1/2
and 11/16) as well as the unique metrics like 10 and 12

"Most"? My recent new four way lug wrench is SAE.