As I already described for my design of Milk Cap Containers (https://www.thingiverse.com/thing:4878903), I developed this design to use TWO milk Tetra Pack caps instead of one. Here is also another version of a wider container: https://www.thingiverse.com/thing:4878962.

I began to collect milk caps and started to design my own containers for these caps. I have at home two different milk caps, where the thread is the same, but the height is slightly different. Both could be used on my container. On attached images, you can se some milk Tetra Packs with sutable caps. Keep them for environmant reason and print your own containers.

To get this printed tube with threads to be a container, you need two milk caps. Why? If you use some kind Tetra Pack milk at home, you can collect lot of theese caps. Why to print bottom of this container, when it can be simply a milk cap as well. Another cap is needed to close the container. Now you get a container with two milk caps.
This design can save you a tainy amount of filament and print time and at the same time you can make better use of two milk caps. It is better to use, than to throw them.

These containers can be used as safe storage for some kind of cutting tools. Just choose a suitable length for the tool.

I have provided 10 containers with different height: from 20mm up to 120mm. All are sliced in Prusa Slicer, without a brim, because I did not have print issues with any of them.