Quote:
Originally Posted by ponchjoe
How do you know it’s 10/28? Could it be metric, it could be an aerospace application. MS, AS, NAS, hardware may fit the bill if you are absolutely sure that is the true size.
Edit:
I now know what you are working on:
https://www.jimbodetools.com/product...er-gauge-72830
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Yes I love those old tools and using them too, this is a pretty handy gadget when set up correctly.
I dont think they aerospace stuff 100 years ago lol.