中新田打刃物 Japanese Knife Making by Michio Ishikawa the Fourth santoku kitchen knives

中新田打刃物Nakaniida Traditional BladesJapanese Knife Making by Michio Ishikawa (the Fourth) santoku kitchen knives Rural Japan TV Miyagi Governor designated traditional crafts Nakaniida Traditional Blades Making Nakaniida Traditional Blades is the same as how to make a sword. It is a tradition technique to strengthen steel by Karauchi and to quench it. It may be hard to understand it by the movie, it is doing 3 times of Karauchi Traditional techniques of this Nakaniida Tradi