Here is my socket rail for my Kobalt Thru sockets. This rail is designed to work with Kobalt's thru ratchet SAE Socket set. The holes are all the same size and spaced accordingly. There are holes on the bottom for 12x3mm magnets to be press fit into place. May fit other brand of maximum access sockets. I can provide fusion360 files to anyone who would like to make adjustments for themselves.