Water tap key

A key for a crane with a 6mm square. It can be printed without any support. Print it with 100% infill for maximum strength of the part. Probably also works fine with 50%.

The dimensions of the original key are:

* Outside cylinder diameter: 12mm
* Outside cylinder height: 12mm
* Inside square length and width: 6.1mm
* Inside square dept: 10mm

There is a version with and without a hole.