Imagine stumbling upon a curious device in an antique toolbox, something that looks like it comes straight out of a mystery novel.

This particular tool, discovered in a collection that dates back at least a decade, features a unique mechanism: a rotating part adorned with spokes. These spokes are of various diameters and align perfectly with a hole on the opposite side of the device. To give you an idea of its size, a Sharpie marker has been placed next to it for comparison.

After some head-scratching and guessing, the mystery is finally solved – it’s a tool designed for punching holes in leather or similar materials. A handy gadget for anyone needing to customize or repair items like belts.