Metric and SAE question here.
Metric doesn't necessarily mean import, ...
The Big3 stopped using 'inch' type fasteners many, many years ago, ...
It's a much better, simpler system and it's also better for overseas sales. Think there's a lot of tech's in Europe or Japan with a full set of SAE tools? I highly doubt it. Hard to sell cars there if there's no one to fix them
The diff. between domestic is they use 13,15,&18 mm fasener head sizes.
The asian imports use 12,14,17mm fasener head sizes.






