Summary

I made this because I only have a 3 Jaw chuck and wanted to drill some holes centrally in some square wood stock using my mini-lathe.

WARNING
I've not had any problems with these but spinning stuff at high RPM in a lathe when that stuff is held with something that is 3D printed might be dangerous, so do so at your own risk, if you download these files you understand that you are taking responsibility ans accept that the designer has no liability.