This model was minor changed of the HIGO JH knife. In this model use titanium handles with DLC. Also, it makes two different handle finishing. A shiny finish (S) and a matted finish (M). 
After cutting and chopping through dried bamboo and cutting through a Manila rope more than 350 times, this blade is still able to slice cleanly through a sheet of paper. This knife has a blade angle of 30 degrees near the half, and 24 degrees near the tip with one continuous, gradually reducing angle connecting them. This reducing blade angle is a product of Rockstead's continuing pursuit of superior sharpness. This is a durable knife with strong cutting capabilities that will last for a long time.

Official: https://www.rockstead.jp/collection/detail.html?id=325&category=knife