ZDP189 steel has a Rockwell rating of 66/67 HRC.
Sharpness - 5/5 due to it's extremely hard construction, this knife can be sharpened to a razor like degree, an extremely sharp steel of the gmuighest order
Sharpening - 1/5 as this is such a hard steel, it is also hard to sharpen and should be done on a good stone
Retention - 5/5 Again, due to its hardness, this steel retains it's sharpness as well as a stainless steel can
Please see our Steel Types Guide for further information to help with choosing the right knife for you, or drop us a call or email to discuss