Print at 0.15mm layer height with a 5mm brim. The U shaped pin attaches to the back and stays in place with the clip. The purpose of the pin is to remove the bits by pushing them out since they are completely integrated in the handle.
You will need 6 Neodymium magnets (20x8x1.5mm) which you push in from the side of the print .
The small marks on the ruler are every 2mm and the big marks every 10mm.
The author marked this model as their own original creation.