Naniwa P-304 Professional Stone (Chosera) 400 Grit Japanese Whetstone Knife Sharpener
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Naniwa's Professional Stone is their highest grade stone and the overseas model of their "Chosera" stone.
Instructions: Splash stone with water before sharpening and continue to do so when sharpening. Naniwa Professional Stones do not need soaking as they have tightly resin-bonded particles, making them more durable and effective than other makes.
Made in Japan