Gridfinity organizer box for three sizes of quarter inch drive extensions and a quarter inch Titan bit spinner adapter.
I have tried several brands of extensions and this fits all of the major brands I own (Stanley, Craftsman, GearWrench, Tekton, Pittsburgh, Quinn, etc)
Printed in Creator Burnt Titanium PLA on a Creality Ender 3 v3 SE with a 0.4mm nozzle.
The author marked this model as their own original creation.