Naniwa Knife Sharpening Stone 800/5000 Grit

104,99 € EUR
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Knife Sharpening Stone Grit 400 Atoma is a high-quality professional Japanese stone, specifically designed for sharpening and repairing knives and tools with damaged or dull blades. Made in Japan, this diamond stone stands out for its ability to remove material quickly and efficiently, allowing you to restore the edge of knives and grind other sharpening stones. Thanks to its flat and uniform surface, it guarantees precise and constant sharpening, being one of the most trusted options for chefs and professionals around the world.

Fast and secure shipping from Spain or Japan.

- All knives are shipped protected with secure packaging and online tracking.
- Shipping from **Spain** or directly from **Japan**, subject to availability.
- Delivery in **4–7 business days** depending on destination.
- **FREE on orders over €100 (Spain) or €120 (EU)**.
- International shipping from **€14.99.

- United Kingdom: €19.90.
- Rest of the world: from €19.99.
- We do not currently ship to Russia.

- No surprises: The final price is what you see at checkout. See Shipping .

🔁 Return Policy: 30 days from receipt of order. See Policy .

What is the Naniwa Knife Sharpening Stone 800/5000 Grit used for?

This combination stone is ideal for all types of sharpening and polishing jobs. The 800 grit allows you to quickly restore the edge to dull knives, while the 5000 grit ensures a flawless polish, leaving the blade ready for smooth, precise cuts. Perfect for keeping kitchen knives in top condition for use and for removing small imperfections and burrs on blades. It is recommended to always use it with water for best results.

Technical characteristics of the Naniwa Japanese Sharpening Stone Grit 800/5000:

  • Grain: 800/5000
  • Dimensions: 210 x 70 x 20 mm
  • Material: Open pore synthetic ceramic
  • Weight: 940 g
  • Manufacturing: Osaka, Japan
  • Recommended use: General sharpening and final polishing of steel knives.

What makes the Naniwa 800/5000 Grit Knife Sharpening Stone unique?

  • Double grain: 800 grit for fast and efficient sharpening; 5000 grit for polishing the blade and removing burrs.
  • High quality construction: Made of open-pore synthetic ceramic, which allows it to maintain flatness during long sessions of use.
  • Precise sharpening: Compatible with high hardness steel knives, ensuring consistent and long-lasting sharpening.
  • Japanese manufacturing: Product manufactured in Osaka, a region renowned for excellence in the manufacture of sharpening stones.
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We make international shipments, ensuring that your order arrives on time and in perfect condition.

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Frequently Asked Questions (FAQ)

Yes, we ship internationally to a wide range of countries. Shipping times and costs vary by destination. For more information, see our Shipping Policy .

Once your order has shipped, we'll send you an email with a tracking number. You can use this number to track the status of your order on the carrier's website.

Shipping costs vary depending on the destination and weight of the items. We offer free shipping in Spain for orders over €100. See our Shipping Policy for more details.

*Shipping may be delayed depending on weather or road conditions. Please use the tracking number on the shipping notification we provide at the time of purchase.

  • Domestic Orders (Spain) : Orders are processed within 2-3 business days before being shipped.
  • International Orders : International orders may take up to 3 business days to process before being shipped.
  • Some of our handcrafted knives, especially those shipped directly from Japan, may have an estimated delivery time of up to 20 business days due to the manufacturing process and international shipping. Please check the shipping times on the product page or contact our support team for more details.

Tariffs are set by the customs authorities of the country or region from which the goods are purchased and are based on the country of manufacture and the products. The classification determines the tariff amount. The amount you pay at the time of purchase does not include local customs duties, which may or may not be charged at the discretion of each country's customs office. If you have any questions, please do not hesitate to contact the appropriate tax authorities in your country.

If for any reason you need to modify or cancel your order, please contact us as soon as possible before we begin processing it at support@ryomiurajapan.com . We will do our best to accommodate your request before it ships.

Visit our FAQ page to answer any questions you may have.