If you have a pipe nut that is not easy to loosen, this tool can help you to apply a symmetrical force around the nut, so that it can be easily loosen.
OpenSCAD source file is easy to edit, so you can modify diameter, thickness, handle length, number of lugs, lug size, etc.
PETG,
layer 0,15mm,
Thick walls recommended (Perimeter setting: 5)
Grainy steel bed plate works good
The author hasn't provided the model origin yet.