Designed to hold the Horusdy mini ratchet screw driver found that can be found here.
https://www.amazon.com/gp/product/B09KBZVZ89/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
1x3 gridfinity footprint. Bit holders will fit any standard ¼" bits.
The author marked this model as their own original creation.