Round big Coving Mitre Jig for 60X60mm 90°

Round big Coving Miter Jig
based on this tutorial:

for coving/frames 60mmX60mm (see fig.2)
For coving/wall/ceiling frames, internal and external corners can be cut with this.
90° cut.
2x 5mm holes allow it to be fixed to a surface using 2x 5mm screws.

**Warning** Always keep the ceiling side placed in the same direction.

Attached you will find the editable file to build the measure that is right for you; if you don't know how to do it, you can make a comment and I will do it for you.