Great and very good looking build!
Guess it should rather be called a "Shear Knurler", as it cuts by the shearing motion of the wheel's angle @ 30 or 45 degrees?
Also, doesn't the angle reduce the 0.8 mm wheel pitch to 0.566 for the 45 deg and to 0.69 @ 30 deg?
Guess the cutting side face could perhaps benefit from a small "dish", grinding it with a diamond burr to get some "rake angle",
when knurling harder, ferrous materials than merely brass and aluminum...
Just two+one "Quick" thoughts.
uv8452 (Aug 3, 2021)
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