What are these?
May 6, 2021 | 8:51 pm CDT
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Mystery bits

I recently bought a collection of router buts from an old woodworkers estate. All together, there were close to 200 bits. They ranged from old Stanley steel bits to newer carbide bits. In the group were 10 that I cannot identify. They may not even be router bits. Can anyone help identify these and maybe tell me ho they were used?

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John Lotspeich