Yes and No. NASA used the metric system in their computer guidance, and converted into Imperial units for the benefit of the Astronauts.
"All drawings, calculations and reports were done and written using U.S. Customary units, including measurements, material properties and temperatures."
"Even internationally, aviation is done in units of feet and nautical miles. While Airbus certainly doesn't design their planes to English units, air traffic is controlled to flight levels defined in feet and speeds defined in knots. US spaceflight was an offshoot of the aviation industry, so many of the preferences and practices used in aviation carried over into the space program."
All across the world, socket sets use 1/4", 3/8", 1/2", etc drive on the rachet and other drivers. This is because it was a US Invention, we held the patents, and by the time that ran out, everybody was using it.
I don't doubt that something like that happened with chainsaws.