Wire Shelf Workbench Tool Holders

On my workbench I have two wire shelves that I purchased from amazon.

http://a.co/d/186Vva5

They're not great because they sag under pretty much any amount of weight, but they are what I have. I wanted to mount some of my commonly used tools to the front edge of the shelf to free up space on the work surface below. To that end I designed some clips with female dovetails (thanks to jeremygreen for his scad dovetail modules) that snap over the front edge of the shelf and then a series of attachments (with male dovetails) that use one or more of these clips to hang from the front of the shelf.

I've tried to make things parametric where possible, but this isn't a polished finished project. I'm using all this stuff, and I'm generally happy with it, but I'm sure there's tons of room for improvement.

Tool Holders:
* Screwdriver and mini-ratchet holder (Chapman Mfg, awesome.. http://a.co/d/bUfIyUV)
* Socket Holder for 1/4" sockets
* DMM holder that should work for mo