The core steel these knives utilize is Blue Super carbon steel. They will hold an incredible edge for a long while (one must keep clean and dry it often to prevent it from rusting, and a benign discolouration will form regardless). 

We highly recommend these Ohishi blades as gifts for culinary students, professional cooks, young professionals moving into their first apartment, newly weds and more!

Santoku is an all-purpose blade that is incredibly useful for tight spaces and it is the one that most home cooks should purchase first. Even folks who use paring knives for everything can quickly get used to this blade since it brings so much utility in a compact size.

Brand: Ohishi 大石
Profile: Santoku
Size: 180mm
Steel Type: Carbon Steel
Steel: Blue (Aogami) Super, Soft Stainless Clad
Handle: Pakka Western
Total Length: 300mm
Edge Length: 182mm
Handle to Tip Length: 184mm
Blade Height: 46mm
Thickness: 1.6mm
Handle Length: 112mm
Weight: 182g
Hand Orientation: Ambidextrous