Morihei Uchigumori Natural Stone (No.9335) need to dig lines before use. Or you can use it as Hazuya finger stone. Edge Length: 320mm

Edge Length: 320mm

I’ve had best results with just a very short soak (2-3 minutes)

so blue steel got popular

it prevents tension warping of the blade

Profile: Children Knife

Morihei Uchigumori Natural Stone (No.9335) need to dig lines before use. Or you can use it as Hazuya finger stone. Edge Length: 320mmWe are no longer producing this item or with the same number. Please understand that showing price, description and specs might be old information. Detailed Spec Brand: Morihei Product Type: Natural Stone Producing Area: Kyoto Japan Layer: Uchigumori Soaking Requirement: Not required Size: 208 x 77 x 35mm Weight: 1242g Update: 5 30, 2026