A clip for my Center Punch pen
Fit is quite tight, as it should be :)print the ring flat and the clip on its 'small long' side.No supportI printed it with 4 shells and 80% infill for best quality
https://www.banggood.com/Drillpro-6mm-Automatic-Center-Pin-Punch-Spring-Loaded-Marking-Starting-Holes-Tool-p-1167890.html