Jiro Tsuchime Yo Sujihiki 210mm Tagayasan Handle (#616) Kasumi Finish Hardness (5 = Very Hard):

Hardness (5 = Very Hard): 4

and rinse it well then put water on the surface

Hardness (5 = Very Hard): Softer

There is Su layer in middle but it will be no problem because it goes horizonal

Edge Length: 328mm

Jiro Tsuchime Yo Sujihiki 210mm Tagayasan Handle (#616) Kasumi Finish Hardness (5 = Very Hard):Detailed Spec Brand: Jiro Smith: Jiro Nakagawa Producing Area: Nagano Japan Profile: Sujihiki Size: 210mm Steel Type: Carbon Steel Steel: Yasuki White (Shirogami) #1, Soft Iron Clad Handle: Tagayasan Western Total Length: 345mm Edge Length: 208mm Handle to Tip Length: 215mm Blade Height: 39mm Thickness: 4. 1mm Handle Length: 132mm Weight: 242g Hand Orientation: Ambidextrous Date of manufacture: June 2024 Update: 5 30, 2026