Drill Holder, Adjustable & Linkable

This is a tool holder I had commissioned designed for a YouTube video on my channel https://www.youtube.com/c/BitnerBuiltWoodworking

Criteria is it needed to hold a drill shaped tool, wall mount or French cleat mount, they must interlock with additional printed units to make one solid shelf, and the opening at the handle is adjustable in width based on what sized spacer you print to go with it.