What Did You Buy Today?

Not sure what the actual use is, some are machine screw (obsolete) size Nr 20. That works out to 0.320, a 5/16 maybe. Thread pitch are Nr 20-18, Nr 20-16, 1/2-16. There are some others, including a couple of tapered. I am not familiar with those, just waiting 'til they get here to figure out if they are worth keeping or for making lathe tools. They were cheap so worth prowling.
 

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