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This is the grafting knife made of Tamahagane.
This item is no longer in production. Only a few left in stock.
Tamahagane is the highest quality steel.
The steel that was used for Japanese swords is decreasing nowadays.
Sharpness is much better than other steels.
Total length : 220mm
Blade length : 74mm
Width : 30mm
Material : Tamahagane
(Concave processing)
"Concave processing" is a technique used to make the back of the blade slightly concave, improving its sharpness.
This working knife No.7401 , 7402 ,7403 looks the same as grafting knives such as grafting knife, but it is made differently. The back side of a blade is concaved about grafting knife. As you can see from the photo, the back side of working knife is flat.
This technique is mainly used for Japanese knives such as sashimi knives and deba knives.
Deva knives