Machinist square holder

The square holder is pretty generic and should fit most squares in this size range (otherwise the cad files is included).

Print standing on left side with 15% gyroid/grid infill and no support.

You can hang it on a peg board or wall with this adapater biltema  or the vanilla adapter.

The vanilla adapter can be modified so it fits wherever You need to hang these modules.

The squares are both 5mm (3/16") thick (poorly illustrated by me on top square in photo)..

100mm = 3-15/16", 80mm = 3-1/8", 50mm = 1-15/16", 35mm = 1-3/8", 5mm = 3/16"

There is enough wiggle room in holder to accept most squares of this size.

MODULA - a module based tool holder system

A universal adapter for (metric) PEG boards, this one fits Biltema, Jula, Clas Ohlson, CC 12mm (15/32 inch) spacing of the 4mm (5/32 inch) diameter screw holes.

The idea is a adapter plate (metric/imperial/plain) that attaches to a module, the module snaps on to this adapter with dovetails.

Why use an adapter? Everyone can share the modules worldwide, and just adjust the adapter plate for their needs.