... ; blade material can be:SKH51,SKD11,SKS7,SK2,Cr12Mov,H13,9CrSi,6CrW2Si,W6Mo5Cr4V2,YG8,YT15,P20,K30 etc It can sharpen ... , blade material can be,SKH51,SKD11,SKS7,SK2,Cr12Mov,H13,9CrSi,6CrW2Si,W6Mo5Cr4V2,YG8,YT15,P20,K30 etc(1)Blade sharpening ...