the right tool

I feel your pain. We in Canada got metric before you did; but our metric was a bastardized conglomeration for at least two years.
After that fiasco I switched to motorcycles, atv's, and snowmobiles, with a lil marine thrown in. I was such a dope. After 35/40 years of wrenching, I now have 9ft of bottom chests and 5ft of uppers and another 4ft of miscellaneous bottoms. I can take just about anything apart.