Nachdem ich mir dieses ähnliche Vid

Nachdem ich mir dieses ähnliche Video von II Brüder angesehen habe ist mir vieles klarer geworden.
Jetzt möchte ich nur noch wissen bzw. ist mir noch unklar für welche stumpfen Geräte ( Messer oder Beile)
diese unterschiedlichen Grad Einteilungen vorgesehen sind 10° Black 15° Red 18° Green 20° Yellow 24 ° Blue
A:Normal way setting angle und B.Right way setting angle
können sie mir das noch etwas erläutern

結果 (英文) 1:

After I I have viewed this similar video of II brothers much has become clear to me.Now I want to know just yet or is still unclear for which blunt devices (knives or axes)This different degree divisions provided are 10 ° black 15° red 18° Green 20 degrees yellow 24 ° blueA: Normal setting angle way and B.Right way setting angleThey me still can explain something

結果 (英文) 2:

After I've watched this video like of II Brothers is much clearer to me.
Now I just want to know, or is still unclear to me for what dull equipment (knives or hatchets)
these different degrees are provided graduations 10 ° Black 15 ° Red 18 ° Green 20 ° 24 ° Yellow Blue
A: Normal way setting angle and setting angle B.Right way
they can explain to me a little

結果 (英文) 3:

after i get this similar video of ii brothers looked at me much has become clear. "now, i would like to just know, and i still unclear what blunt equipment (knives or axes) the different degree classifications are provided for their "black red green yellow blue 20 april 24%
a: normal way setting angle and the right way setting angle.can you explain me more