Gridfinity magnetic hex bits holder

A 2x2x2 stackable gridfinity holder for 30 hex bits (6.3mm). It uses 15 ⌀6x2mm magnets to hold the bits in place. The bin is not magnetized. Update 2026-04-19 added 3x2x2 and 4x2x2 variants and variants without magnets. See also that Hex Bit Organizer Tray for Gridfinity that inspired it, without magnets and one less column.