Crosshatch Tubing
Here is some medium-medium crosshatch tubing with 90 degrees misalignment. Advisable to use the guides that come with the tool to maintain the angle. This could be used as a grip for hammers or axes perhaps?
Now that I’m seeing it this might be a good candidate to come back over with a flat-flat roll extremely lightly to try to flatten out the small square nubs. Try it and see what you think!