I don't know if there exist some tool or utensil to make these spirals or screws.
I mean the shape which I am intending to replicate follows the idea seen in the figure from below:
Another example of this shape can be seen in this site
In other words what I intend to do is to make this sort of accordion or screw sonveyor shapes with cucumbers or perhaps potatoes, and yes without that metal rod in the middle connecting the spirals.
But I don't know if there exist some tool for that? Does anyone how a way how to make this? Please don't say to replicate this using a regular knife because that's now the way how I intend to do this, and kind of it looks difficult. Can someone help me here please? I browsed for different tools on Amazon, but none of those seem to display exactly the result which I am trying to get. So any cooking expert can help me?