he Aogami Super line is arguably one of the most underrated offering from Sukenari. The reason? While staying at a very affordable price, the Sukenari Aogami Super is forged and water quenched to an extremely high hardness of HRC 65 (previously, the damascus version was even higher, more than HRC 66). This means a super high hardness, extreme sharpness and edge retention, but it also comes with an extremely high failure rate.Sakai Takayuki
At HRC 65, the blade is noticeable harder than a HRC 62 hardness knife using the same Aogami Super steel (from Echizen). Accordingly to one of my very close customer, he has only ever experienced the same level of hardness from the Fujiwara Denka line.
You can read more about Sukenari at here: here: http://www.knivesandstones.com/blog/visiting-sukenari-hamono-apr-2016/