Came in a milk crate purchased at an auction filled with mostly basement workshop items but it looks almost like a kitchen device.
The threaded part unscrews completely out and can be switched end for end to change from a larger to a smaller size. The handle is 9" long with a plastic end grip.
It's mounted on a 9" piece of wood that doesn't appear to be very old, there are no numbers or letters stamped anywhere, front or back.
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