Magnet handle (for 12x3mm neodymiums)

A magnet holder to make 12x3 round neo magnets more comfy and more usable. FreeCAD model included.

The hole is drawn at 11.9 mm diameter and 2.9mm deep, so the magnet surface is slightly proud of the base, and there is a press fit into the opening.

Try one and if your magnets don't fit well, perhaps scale up by 1-2% before printing a batch of them.