I have an old cracked SK 1/4'' drive 7/16'' socket and it has no country stamp. Probably because back then everything was made here.
That is exactly why no stamp... Nearly al the tools being sold at that time were US made. Those that werent had a stamp from the country of origin.

Well I'm USA made, and I don't have a country stamp....that I know of, anyway.![]()
J/K!Ah... Guess you haven't looked in the mirror lately?J/K!
