Ok I understand that. But different manufactures have different measurements for each gauge. For example, I have a pair of 13 mm 1/2" but I also have a pair of 12.2 mm 1/2". Maybe I should have asked if they ran small.. anyways thanks.
Super. I understand standardized millimeter size, although I appreciate the insight. Once again, different manufacturers put out different millimeter sizes, which are most of the time pretty close to standardization but not exact and others get it right on the money. I simply wanted to know if this was pair was exact. But I do appreciate it :)