8mm Duebel for Saturday afternoon (Q907477)

This is a duebel used for puttiing screws into concrete walls. From the shop I think they are cheaper and with lower carbon footprint and less waste of energy of course but if the shops are closed like in some countries on saturdays, than you are able print one. With the blender file you can even scale it to your needs. The stl-file is optimized to be printed vertically.