Well I haven't worked on anything with JIS! A guy I used to work with hadn't had fractions in school, so he would use the metric even on SAE parts. He couldn't

Well I haven't worked on anything with JIS! A guy I used to work with hadn't had fractions in school, so he would use the metric even on SAE parts. He couldn't figure out that e.g. 7/16" is smaller than 1/2".