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Naniwa Sharpening Stones (Naniwa Super Stone) is a series of Japanese water stones produced by Naniwa, which has an increased working life for professional use. It is designed to solve complex problems of roughing (repair), sharpening and polishing (finishing) products from complex alloyed tool steels, high-carbon stainless steels, and high-carbon corrosion steels with a hardness of 55 to 65 HRC. Products made from such steels, as a rule, include samples of expensive knife products - prestigious chef's, hunting, tactical, utility knives, etc. In addition, the group recommended for sharpening with Naniwa Sharpening Stones series includes professional tools for hairdressers, engravers, carvers on wood, etc.
Naniwa abrasives is a high-tech product that uses complex complex bonds and compound abrasive grains. Those. a fine abrasive is fastened with one bond, forming a larger grain, and then this grain is combined in multistage into larger conglomerates already with the help of other bonds. Naniwa was the first company to apply this innovative technology in the Sharpening Stones series (for the Japanese domestic market, the name of this series is Super Stone). Starting with stones of 5000 grit, special substances are added to the bundle of bars, which provide a chemical effect on the surface oxide of the knife metal, thereby enhancing the polishing effect of the approach. Those. when working with fine-grained Naniwa Sharpening Stones, the classic cutting of blade steel with an abrasive is replaced by a chemical-mechanical process of processing its surface. And as the grit of the stone increases, the polishing process more dominates over the abrasive effect.
It should be noted that for sharpening knives and cutting tools for domestic everyday use - finishing on Naniwa Sharpening Stones at 3000 grit gives a highly satisfactory result. Japanese artificial abrasives produced by Naniwa of the Sharpening Stones series in any case allow you to achieve the best result with minimal effort and time.
The combination of such characteristics of the Naniwa Sharpening Stones series as an exceptionally high abrasive ability (according to this parameter, Naniwa abrasives occupy a leading position in comparison with other manufacturers), excellent wear resistance and extreme hardness of the stone surface guarantee the stability of the working plane during work and cause the well-deserved love of practitioners and professional interest.

Additional characteristics:

Country of origin Japan.
NANIWA production
Sharpening Stones Series (Naniwa Super Stone)
Type whetstone whetstone.
Material Aluminum oxide.
Dimensions 210x70x20 mm
Recommended coolants - clean cold water


Country of origin
Sharpening Stones (Super Stone)
220, 400, 800, 1000, 2000, 3000, 5000, 8000, 10000, 12000
Abrasive material
Aluminium oxide
Bench Stone
Stone size
Polishing Lubricant
clean water
800 g
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