If you need to replace the small piece of PTFE tubing between the extruder and hotend on a K1 max, this small jig will trimming the tubing to the exact size. The slot in the jig fits a common utility knife/box cutter blade. Make sure to get a new one for the sharpest cut.
Note that this has been tested only on my K1 Max, which means that the sizing is somewhat biased towards my machine. In case you print and the result tubing doesn't fit, I ask that you add a comment so we can improve the model and have it become useful for more users.
The author marked this model as their own original creation.