Hitohira Picked Umajiyama Natural Stone Type 30 need to dig lines before use. Or you can use it as Hazuya finger stone. Size: 160 x 58 x

Size: 160 x 58 x 18mm

Weight: 306g

using too high of a temperature or exposing it to heat for too long would cause the hard steel in the Kitaeji to lose its carbon content

good for single bevel kitchen knife

Weight: 634g

Hitohira Picked Umajiyama Natural Stone Type 30 need to dig lines before use. Or you can use it as Hazuya finger stone. Size: 160 x 58 xPlease understand that pictures and mesurements are samples. Each stone has different colour and shape. Detailed Spec Brand: Hitohira Product Type: Natural Stone Size: Type 30 Producing Area: Kyoto Japan Mine: Umaji Soaking Requirement: Not required Size: 205 x 78 x 32mm Weight: 1418g Update: 5 30, 2026