Gridfinity holder for Wera Kraftform Micro Electronics Precision Screwdrivers. The holder is sized so that even the longest screwdrivers in the Wera 05073675001 Kraftform Micro-Set/12 Sb 1 Screwdriver Set will fit.
Not sure about drivers from other sets / sizes, you may need to double check yourself but any microdriver with up to 85 mm shank should fit.
The author marked this model as their own original creation.