Just a small case for the needle files, nothing advanced. Keeping them together in the drawers, bags or wherever they might go. It doesn't matter if it's in the workshop or outside, it's always essential to have all the tools organized. The top and bottom parts of the case stay together by a friction fit, and we recommend printing in the orientation the models are. Scale or sand/file to fit if necessary.
The needle files we designed this for are 140 mm long, and have a 50 mm long handle. The diameter of the handles are 3mm but the base have 4 mm holes. This allows for shrinkage if printed in ABS or a little wiggle room for variations in handle diameter.