Socket wrench holder to go together with https://www.printables.com/model/1437003-detachable-drill-and-hex-bit-holders

The holder is designed for 6x3 mm magnets. Cheap magnets will work perfectly fine - the mounting plate provide a fairly strong vertical grip. Magnet holes are press fit, glue isn't needed.

STEP file is available for customization of hole sizes, magnet dimensions etc.