Toilet Wrench - Rounded 65mm
I needed to change out the through pipe on my toilet. The builders used some no-name brand that has what I believe to be a non standard plastic nut. I could not find any wrenches at my local hardware stores, so I modeled one up.
The nut's outer diameter (minus the nubs) measures 65mm. Your printer needs to have decent tolerances to print this at 100 percent.