This is a repair part to fix the rod connector for the band selector switch inside the TS-520 transceiver. You can read about the repair on my blog:
https://alaskalinuxuser3.ddns.net/2020/11/09/fixing-a-ts-520-band-select-switch/
This part is no longer manufactured by Kenwood, so I made this 3D part to fix it. The zip file is the cad files I used to create it. If you slice the stl, be sure to make it stronger by 100% infill.
The author hasn't provided the model origin yet.