Gridfinity Harbor Freight 1/4" Metric socket organizer

Two versions, one with a 1.5mm clearance around the sockets, and one with 0.5mm clearance.

I prefer the looser one, as the other sockets lean out of the way when you grab one vs being rigidly vertical.

The base of the holes is as low as possible to let deep well sockets clear a shallow drawer.

https://www.harborfreight.com/14-in-drive-metric-color-coded-deep-socket-set-10-piece-67868.html

https://www.harborfreight.com/14-in-drive-metric-color-coded-socket-set-10-piece-67875.html