Kei Kobayashi is a well renowned knife sharpener based in Seki City who, in recent years, has also trained as a blacksmith and now produces some of the most exquisite knives we've seen.
Kobayashi knives are finished to perfection and sharpened (as you would expect) to a staggeringly sharp edge. Like almost nothing else we've seen.
These are real works of art with their own unique Handle designs and perfect form.
R2 steel is a hard stainless steel used by leading blacksmiths to provide some of the best sharpness and retention specifications that can be achieved from stainless steel. It makes for a superbly sharp knife that lasts a long time but can require a little more elbow grease when sharpening due to being a harder steel.