My argument is a mm is too fine in that situation. 1/8ths and 1/16ths are ideal when working at those scales.
In reality I use both systems all the time. It’s situational.
> When I hear anything past about 1/8th of an inch my brain shuts down, and I give up.
Realistically, same. 32nds don’t get used outside of some specialty wrenches. 16ths are a practical limit where other scales start to make more sense. Probably millimeters.
