Summary

I really liked the original design, but the dovetails were too tight, so I decided it was better to simply fuse them together and print as a single object with the desired number of segments.

I managed to remove about 30-40% of the material while keeping it functional.

A single file is provided, which can be merged together within your slicer or in CAD. I have also included a 9x version with an even greater amount of material removed (~50%), suitable for use in a standard toolbox.