GB SISSON
Well-known member
Things are a bit easier if you realize that 7/16" and 11mm are virtually interchangeable as are 5/6" with 8mm, 5/8" with 16mm, 3/4" with 19mm and others. If you can't find the one you need, there may be an alternate.
And let's not forget 14mm and 9/16" - exact swap. Funny, My metric wrenching has primarily been toyotas, so I never got to experience most of these. Yes, some 8mm, but 10, 12, 14, no 15s or 16s, lots of 17s. And let's not rule out the adjustables and vice grips.