cut a hinge for articulation in one command

Use this Stl part as a cut tool to create a hinge in one go using a boolian subtract operation makes a hinge for example it can be imported into tinkercad, converted to hole and once grouped with the object it will create a hingeMake sure the height of the object, animal or whatever you are trying to make is 9 mmDo not try to print this file as it won't give you anything - just use it as a cutting tool to create a hinge.I would not scale this down more than 75% as it will become fragile. Scaling up is ok I guess but I haven't tried it.