I believe the guy who started the company and designed the original tools was Swiss. As I understand the story, and I could easily be mistaken is that he had emigrated to the US and originally manufactured them through various US based companies. Then, as usual the company became successful and started trying to maximize profit, keep costs down while maintaining a price point and one of the best ways to do that is manufacturing overseas.
Some of the tools, like the Utili-key for example are actually simplistic enough that you'd never be able to tell the difference between a China made one and a US made one if the origin point wasn't stamped into it.
Def
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