I made two of these with hardware from a local hardware store, and printing them on my 3dprinter. One was printed with Taulmans Alloy 910 and the other with Polymakers PC-Plus. Both 100% infill. I have not been able to test the tool, but I think the plastic will be strong enough. Shapeways Strong and Flexible Plastic (Nylon) should work just fine. I will update when I have fully tested this tool.