Naniwa P-390 Professional Stone (Chosera) 10000 Grit Japanese Whetstone Knife Sharpener in a design collaboration with

in a design collaboration with custom knife-maker Andrew Demko

effortless cutting and shaving

after the Nepalese tactical and utilitarian machete

Throughout his entire life

Lifetime warranty from manufacturer defects

Naniwa P-390 Professional Stone (Chosera) 10000 Grit Japanese Whetstone Knife Sharpener in a design collaboration withNaniwa's Professional Stone is their highest grade stone and the overseas model of their "Chosera" stone. 10000 Grit 210 x 70 x 20 mm 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