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What Tool is this???

ksimolo

Aluminum
Joined
May 23, 2010
Location
NY, USA
I purchased these as part of a machine shop lot. The person selling the lot did not know what these were. It looks like the half moon slides up on the 2 posts and is locked down by the screw. Other than from the end view, the half moon has an extremely tight fit - lines are not easily visible. There are 4 sizes. The tools are labeled 620-92-04-01 to 620-92-04-04. There is no manufacturer markings. Any idea what they are? Thanks!

Unknown Tool_3519.jpg

Unknown Tool_3522.jpg
 
I don't know what they are, but the hex shanks really throw me from thinking they're machine tool tooling. Bit more than a "half" moon also isn't it?

I'm racking my brain and can't think of any plausible use, but I've found a number of things in similar lots of stuff I've bought that I still have no clue what they are, and they're much less confusing.


I'll be curious to see if you get an answer.
 
Tool to twist out drill bushings? Nota clue.. doesn't look used so maybe not to useful
 








 
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