The most commonly used tool for driving STEMFIE screws and nuts is the SPN-TOL-0001. It is a combination tool, having a screwdriver slot on one end and a socket for the STEMFIE nuts on the opposite end. It also has cavities and holes for holding threaded rods and pins.
You can now download this tool with its tool stand and part number sign.
This toy is unsuitable for children under three years due to choking hazards! 
