Moen Cartridge 1225 Removal Tool

I designed this more as an experiment in precision reproduction of an existing part.

My showers were all leaking, and being installed in the mid-90's they all use the Moen 1225 cartridge, which is easily replaced and/or repaired. Each kit comes with a tool that goes over the end and allows you to use a 1/2 inch wrench to break the cartridge loose. Without this tool, it is said you can break your vice grips before actually pulling the thing out, the cartridge gets so set in there.

So if e