The holder is designed for steel tool board with holes every 15mm and a “keyhole” every 3 holes. 

The part is attached using 2 M4 screws, one screwed in from the back, one from the front. The back screw can be screwed in before attachment and then inserted into “keyhole”. By changing the screw depth, it is possible to tune attachment tolerance. The front screw is to be screwed in after attachment to secure the holder in place.

The hanger is designed for a following set of keys:
- 1.5 mm
- 2 mm
- 2.5 mm
- 4 mm
- 5 mm

The attached Fusion360 file can be modified to alter fitment or adapt the hanger to one's needs. The diameters of all the tool holes are adjustable in “parameters” window of Fusion360. It allows the hanger to be used with different sized keys.

Hardware

• 2xM4 screw, length 5-10mm (conical head)
• The tool board, available from different sources (for example this polish supplier https://allegro.pl/oferta/scianka-narzedziowa-warsztat-garaz-producent-11739598009).

Printing

• No supports required
• Recommended layer height: 0.2-0.3
• Print orientation: as in the model