Keystone Inset, Blank

This is a rough approximation of a Keystone insert. I made it so that I can make custom keystone style plugs. If you have a format request please let me know. The main file is an AutoCAD file and the stl is so that you can see a preview.

EDIT(7/16/16 | 11:17 UTC): I printed and realized I modeled this incorrectly in a few areas. I have corrected the errors and re-uploaded.