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Naniwa Professional CHOSERA (on letterhead) 150x20x5mm

Professional series Naniwa Professional Stones in the format for machine sharpening - 150x20x5mm, pasted on a blank, 2mm thick with beveled edges at 45 degrees ("dovetail").

Naniwa Professional Stones or for the Japanese market NANIWA CHOSERA is a series of Japanese water stones produced by Naniwa with an extended working life for professional use.

From other sharpening stones manufactured by Naniwa, the Professional Stones series is distinguished by increased wear resistance of abrasive stones, which can significantly increase productivity during long-term use and large volumes of sharpening. The Naniwa Professional Stones series is designed to solve complex tasks of roughing (repairing), sharpening and polishing (finishing) products from complex alloyed tool steels, high-carbon stainless steels, as well as high-carbon corrosion steels with increased wear resistance. Products made from such steels include samples of expensive knife products - prestigious chef's, hunting, tactical, utility knives, etc.

Naniwa abrasives is a high-tech product that uses complex complex bonds and compound abrasive grains. 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 Professional Stones, the classic cutting of blade steel with an abrasive is replaced by a chemical-mechanical process of processing its surface.

Japanese artificial abrasives produced by Naniwa of the Professional Stones series allow you to achieve the best result with minimal effort and time. At the same time, this series of grinding stones has the highest wear resistance and the highest density of abrasive grain faces per unit area of ​​the working surface of the bar of all existing artificial abrasives.
The combination of such characteristics of the Naniwa Professional 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.

Country of origin - Japan
Producer - NANIWA
Material Aluminum oxide
Type of delivery - on the form
Stone dimensions - 150x20x5mm
Bar dimensions - 160x20x2mm (dovetail ends)
Recommended coolants are clean, cold water.


Country of origin
Professional Stones (CHOSERA)
10000 grit
Abrasive material
Aluminium oxide
on aluminum plate
Stone size
Aluminum plate size
Polishing Lubricant
clean water
65 gram
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