
Designed for both metric and imperial sized pins but comes with two metric boxes making this set "universal" only in a universe outside of the US (and Liberia, not to mention ) lies another stubborn opponent). As a US resident, I feel cheated, especially after spending money to support a domestic company (although I doubt this set was made in the US; there's something Indo-Chinese about it). If that's an American company's level of quality control, it's no wonder their lunch is eaten by imports. They cannot be more expensive and of lower quality at the same time.