The file 'Propane Bottle Wrench (parametric) 3D Printer Model' is (scad,stl) file type, size is 4.4KB.
This mimicks a little tool I once saw in a camping shop and which they wanted 10EUR for. I was too cheap to pay that much, so I bought a 3D printer instead and made one. Stick it on the propane hose going to the bottle and you always have a tool to tighten that one nut handy. Parameterizable for any size.
propane_bottle_wrench.scad | 381.0B | |
propane_bottle_wrench.stl | 54.5KB |