This ring is used for hiding cuts made with a holesaw into finished material. In my case I was cutting holes into IKEA shelves that I did not want to have exposed. The ring is superglued in place.

You can adjust the size of the ring by adjusting the values in the file to create whatever size ring you need.

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This work is available for download in the ZIP file format under the terms of the "Attribution-NonCommercial-ShareAlike 4.0 International" license.

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beauty_ring.stl