This is a tool holder to hold power tools underneath a shelf or something.

You'll need one of the end pieces to start with, and then you can just chain as many of the tool holders together as you need!

For installation, you only need 3.5" #10 deck screws or similar. 2x each for every piece.

For me, it takes ~1.5hrs to print the end piece, and ~2.5hrs to print the larger pieces, but I've got a delta printer, so if you've got a cartesian your times may vary.