This is a holder for the small needle files sold in sets of twelve like the type shown in the photos. These used to be sold by Harbor Freight; the files HF now sells are similar no longer have the plastic handles (but these same files are still available in the other usual places). Other needle file holder prints are out there, but I wanted to make my own with these features :
Note that the holder has 13 holes - I added an extra "spare" hole just to fill out the pattern.
The OnShape 3D CAD files are here :
Print in PLA using the 3mf file provided; otherwise :
The author marked this model as their own original creation.