Old Lufkin Combination Square

Glacial_Erratic | Posted in General Discussion on October 13, 2020 10:31pm

On an old Lufkin Combination Square, what is the purpose of the sphere at the bottom?
Thank you.

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Glacial_Erratic | Oct 13, 2020 10:32pm | #1
Here is a photo.
GeeDubBee | Oct 13, 2020 10:48pm | #2
It is a scribe pin. Often a friction fit but, sometimes threaded in. Try to turn it counter clockwise. It will either unscrew or just spin. If it just spins, pull out gently while twisting back and forth.

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