This is a case for a set of soldering tools. The kit is made in China and likely sold under many different "brands". Mine has "Aven" stickers on it, but they are all stickers and not part of the original packaging.

The tools include a part holder, lever, fork shaft, scraper, needle, hook, reamer, knife and brush. There are 6 pieces, each with a hexagonal handle and two ends. The tools snap into the case so they don't fall out, even if you turn it upside down.

The case is 210mm x 10.5mm x 15mm.

The hinge is made from a 1.5mm wire we got from a hobby and crafts store. It is typically used for making wire baskets and ornaments. Since I had it lying around and wanted something a bit stronger than a paper clip, this is what I used.

Still having a bit of trouble with the latch. I used PLA for my print, and the top part of the latch broke off the first time I tried opening it. Might need to be removed or made sturdier.