Name: Naniwa Diamond Stone grain 400
Brand: Naniwa
SKU: NADR7504
Price: 154 EUR
Availability: InStock
Rating: 8 (1 reviews)

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The **Naniwa Diamond DR-7504 sharpening stone** has a grit size of 400. It consists of an aluminium plate with a diamond grinding layer on top.


Diamond sharpening stones are ideally suited for sharpening hard steels. You can even sharpen ceramic knives with these sharpening stones. These sharpening stones can be used with or without water. The advantage of adding water is that the sharpening residue is immediately washed away. Another incidental benefit of diamond is that it doesn't need to be sharpened in between uses. In principle, diamond sharpening stones always remain flat.


However, it's important to note that your diamond sharpening stones need to be pre-sharpened before the first use, because in the beginning they sharpen slightly coarser. After about five to ten sharpening sessions, they will reach their ideal functioning.

We offer the Naniwa Diamond series sharpening stones in six different grit sizes: 400, 600, 800, 3000 and 6000. Want to know which grit size you need? Then check out our video tutorial. You can use the following as a general rule of thumb:




* 120 to 600: suitable for pre-sharpening blunt knives

* 800 to 1000: suitable for sharpening and maintaining knives that are in good condition

* 2000 to 3000: capable of a result sharper than factory-ready

* 5000 to 10000: suitable for sharpening (polishing) knives until razor-sharp




Naniwa Diamond Stone grain 400

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Neem de korrel serieus: het is een 400 binnen Naniwa's systeem, dus een JIS 600. Verwacht je een spectaculaire verwijderaar van staal, ga dan liever op zoek naar een grovere korrel.
Wat doet hij goed: biedt een heel regelmatig patroon, en kan daarbij de hardste stalen aan. Biedt niet de feedback van een gewone steen.

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warranty

Almost all the products we sell come with a manufacturing warranty. Want to learn more about the warranty? Read our topic: [warranty explained](/en/ct/warranty-explained.htm)

Warranty

origin

The country of origin is the country the product is produced, as far as we know. This may differ from the country where the brand itself is located.

Country of origin

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General information

value_height_usable_part

The height/thickness of a sharpening stone (excluding a potential base).

Height usable part

value_length_useful_part

value_weight

We always weigh a product as bare as possible. Knives and axes always without their sheath, lights (if possible) without their battery. For knife sets we measure the entire weight. This may deviate from the manufacturer's specifications.

Weight

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Dimensions & weight

stone_abrasive

The material that gives the sharpening stone its abrasive effect. Diamond, ceramics (e.g. aluminium oxide or silicon carbide) or the materials in a natural stone. Read [more about the advantages and disadvantages of these materials](/en/ct/sharpening-stone-materials-which-are-the-best.htm).

Abrasive

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The agent that brings all the abrasive particles in a sharpening stone together. The cohesive agent usually consists of natural products, such as cellulose, wax, clay and even magnesium, or synthetic products such as: polyacrylates, polyvinyl alcohol or various synthetic resins. The cohesive agent itself usually has no abrasive effect.

Cohesive agent

Material

The grain size a supplier gives to its sharpening stones. Please note: This can be either in FEPA-F (European), ANSI (American) or JIS (Japanese). Read [more about the different grain sizes here](/en/ct/expressing-grain-sizes-sharpening-stones.htm).

Grit according to supplier

stone_guides

Sharpening guides help you maintain the right angle when sharpening your knives. [Read more about using sharpening guides here](/en/ct/use-of-sharpening-guides-on-whetstones.htm).

Delivered with sharpening guides

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Some sharpening stones need to be submerged, others only need a splash of water and some need no water at all! For the best results, check in advance what is best for your sharpening stone.

Use with water

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The grain size we give to a sharpening stone. We test all sharpening stones ourselves and add an appropriate grain size on the basis of this test. From extra coarse to ultra fine.

Grit size

Features & functions

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stone_stand

A holder/base that ensures the stone doesn't move during the sharpening process.

Naniwa Diamond Stone grain 400

Naniwa Diamond Stone grain 400

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