Originally designed to store multiple tool bits, but is able to be customized to meet any situation that needs a tray of equal sized compartments.
stl files include as examples of what can be created. The hex and circle examples should be able to fit the common size screw head bit as shown in picture. The "square" example is a large compartment.
If making square compartments, make sure add_intersect_holes is set to no (0).
When rendering stl, it may take some time to render the final object.