This is a holder for wera allen key holder. You need to screw it on the M3 Honeycomb insert.

Update:

Version with built in insert (no screws needed) uploaded

It is designed for this Wera Tool:

https://www.amazon.de/gp/product/B06XDCDHV8/ref=ppx_yo_dt_b_search_asin_image?ie=UTF8&psc=1

Print Option:

PLA

20% Infill

If you have any questions, feel free to ask.