Test cube

This is my personal test cube that I made in Maya.
Its totally useless for anything else then testing, however, if you should accely find useful for something please let me know because I am very curious to what that might be.
The cube it self has a square hole in the middle of the cube, inside that hole is a pillar and a tight square corner for checking if its equal sized on both ends, the pillar is meant for checking overhang, its also big/medium outwards letters as well as small outwards letters, and big inwards letters, The cube is in a big scale and is meant to be scaled in all sizes you want(the one on the pic is 0.15 scale) the cube is also meant to be tested on multiple sides of the cube, it is also a small round hole in the side for checking roundness capability.
Dont know if any one will find this usefull to testing, but I hope someone might do and therefore I wanted to share my personal test cube whit you all.
Please read and consider: all my contentand designs are for every one to use free off charge so If you like my design/models/content please consider to give a donation by pressing: Here