This is a tool case I made for my metric and SAE sockets from harbor freight. They come on a rail but removing them is difficult and they take up a lot of space. This stores them securely

Lid must be printed vertically with supports unfortunately. The layer lines need to be in the same direction of the closing clasp or it will snap off. The support may be difficult to remove but using trees may work better.

There are gaps on the sides of the lid joints and the lid clasp. These should fuse together during printing. They can be cut with a utility knife to add more flexibility to those areas but may not be necessary.

20% infill should be fine with standard PLA and PLA settings.

Here is a link to the sockets I used here. Note that I made this in early 2020 and am just remembering to share now so the sockets at Harbor Freight may have changed. https://www.harborfreight.com/38-in-drive-metric-hex-socket-set-6-pc-69546.html