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Oboro Knife
NSK KOGYO DIAMOND WHETSTONE

With sharpeners increasingly unable to use natural stones, the Oboro series was created after more than 18 months of development as an alternative to natural stone.

The Oboro series of stones is composed of a mixture of diamond particles, stones and substances found in natural stones.

So, just as natural stones have no defined grain size, the Oboro series, like natural stones, is divided into Chuto-Koma, Chu-Shiage, Shiage, and other grain size levels.

By NSK Kogyo

NSK Kogyo Oboro Knife Diamond Stone #800

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Size

1mm

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Weight

500 g

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Saya

Not Included

Regular price $420.00
Shipping scheduled for
FREE Shipping CA 150$+
Description
Oboro Knife
NSK KOGYO DIAMOND WHETSTONE

With sharpeners increasingly unable to use natural stones, the Oboro series was created after more than 18 months of development as an alternative to natural stone.

The Oboro series of stones is composed of a mixture of diamond particles, stones and substances found in natural stones.

So, just as natural stones have no defined grain size, the Oboro series, like natural stones, is divided into Chuto-Koma, Chu-Shiage, Shiage, and other grain size levels.
Care instructions

Have professionally sharpened on a water stone every year. Store in a dry place. Wash immediately after use and dry completely before storing. Do not soak. Not dishwasher safe.

Product Remarks

Please note that each handle is unique and may exhibit distinct variations, such as differences in the hue or color of the buffalo horn, which is part of its authentic, handcrafted character.

Warranty

Each knife is covered by a lifetime guarantee against obvious manufacturing defects. For example, if the handle comes loose or cracks after a few weeks of proper use, or if the blade develops a crack along the edge or blade spine. These issues are rare, but they can occur. In such cases, we will offer you an exchange for the same product or a refund. As every case is different, it is at our discretion to assess whether our lifetime guarantee against obvious manufacturing defects applies.

After-Sales Service

Is your knife not cutting as well as you expected? Each knife comes with what we call its "original sharpening". We have over 200 different products in stock, often several of each. All our products are handcrafted in Japan before being shipped, and the "original sharpening" may vary. If you think your knife is not cutting to its full potential, do not hesitate to contact us and we will sort it out for you by sharpening the knife free of charge!

Oops, did an accident happen with your blade?

Did your knife fall on the floor, get damaged during a slip, or was it used to cut something too hard? We’ll take care of it and support both you and your knife by offering you an in-store sharpening and repair service!

Do not hesitate to contact us or stop by the store to get an estimate in just a few minutes!

Shipping and Returns

What are your shipping rates?

Canada: $15 (free for orders over $150)
United States: $20
Rest of the world: $50


What are the delivery times?

We do our best to process your order within 72 business hours (weekends excluded) in order to ship your package as quickly as possible. Delivery times vary depending on the carrier. If you need faster delivery, please contact us at 514-503-1185.


Is there a refund policy?

No refunds are accepted.
The only exception concerns defective items (although our team checks every order with the utmost care). If you receive an item that appears to be defective, please let us know as soon as possible after receipt. In the event of damage caused by the carrier, please keep all items and original packaging for a possible inspection by the carrier. Items returned to Stay Sharp are at the buyer's expense. Items must be properly packaged to prevent any damage and must be fully insured. Please also provide us with the tracking number so that we can track the status of the shipment. Funds will not be refunded until we have received the items and confirmed that their condition is satisfactory. The refunded amount will correspond to the amount paid, less shipping and handling fees, online sales fees and any other costs incurred.

Customer Reviews

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Frequently Asked Questions

Why pair diamonds with natural minerals?

Each component brings its own quality. The diamond particles bite effectively into all steels, including the hardest. The natural minerals, for their part, seek to reproduce the feel and finish of a natural stone, often appreciated for the fineness of the line they leave. The goal of the Oboro series is to offer this natural stone character with consistent performance from one piece to another, without depending on deposits that are depleted over the years.

Is a diamond stone suitable for hard steels?

Yes, that is one of its strengths. Since diamond is harder than the carbides found in modern steels, it cuts through them effectively where some traditional stones struggle to gain a grip. An 800-grit diamond stone can thus restore the edge of a powder-metallurgy or high-speed steel knife without taking an excessive amount of time. Keep your pressure light, as diamond removes metal more quickly than a conventional abrasive, especially on a thin blade.

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