About this 3D model

This key is my first 3D object made with openscad. I chose this for two reasons. It's a nice object to learn how to work with openscad. And more important: I think every geek, hacker, technician want to have this tool in their toolbox!!!! This key fits on a lot of cool things. I tested it with trafic lights and street lights but this will also work for For control cabinets, shut-off systems in gas, water and electricity supplies For technical installations in buildings like air-conditioning and ventilation systems, shut-off valves, mains switchboards etc. please post your results in the comments ;)