Name: Naniwa Chosera 400 sharpening stone without stand
Brand: Naniwa
SKU: NASS400WS
Availability: OutOfStock
Rating: 9.33333 (15 reviews)

Let us hone your decision-making skills to select the perfect sharpening tools!

Are your knives in need of sharpening?


 [![](/2013/ci/slijpen_onderhoud/merken/naniwa/banners/naniwa-chosera-vervallen-banner-categorie.jpg)](/en/pt/-naniwa-professional-stone-p304.htm)   
  
  

**Naniwa Chosera, Super and Work stones have been replaced by the new and improved Professional, Speciality and Combination stones. Click on the banner above for the new stones.**   
  
  



The Naniwa Chosera 400 whetstone uses magnesia as binder for the abrasive, in this case white aluminium oxide.  

  


The Chosera stones do not soak up any water so the stones do not need to be sprinkled with water frequently. This makes Chosera stones rather easy to sharpen with. Because of their hardness you will not cut into the stone easily and sharpening with these stones will take less time. Their hardness make them a good choice for knives made from hard steel.  
  


Splash with water before and during sharpening, do not soak or store in water.  
  

**About grit sizes**  

Whetstones come in various grit sizes. The higher the number, the finer the grit. A finer grit results in a sharper knife. Sharpening a really dull knife on a fine grit will take much time, so you will need to treat it on a coarser grit first.  
  



* 120 - 600: Appropriate when real dull knives need to be brought back in the right shape

* 800 - 1,000: Appropriate to sharpen knives that were already in a reasonable state

* 2,000 - 3,000: For a result sharper than most knives are when they leave the factory

* 5,000 - 12,000: To polish the knife and get a razor sharp edge



**Remarks pertaining to Chosera sharpening stones**  

During manufacture, Chosera sharpening stones are bound with magnesium. This superior production method guarantees superb results. However, these magnesium-bound stones are more prone to developing hairline cracks. To prevent this from occurring, it is important NOT to use too much water when wetting Chosera sharpening stones. So Chosera stones should NEVER be left to soak in water for a prolonged period of time! It is also important to dry these stones thoroughly after use and store them in a dry, dark place.


Naniwa Chosera 400 sharpening stone without stand

brand

colour

series

grit_general

stone_abrasive

notforsale

value_width

value_height

value_length

not_replaced_in

orderNumber

reaction

reviewDate

valueForMoneyStars

meetsExpectationsStars

authorCity

Garantie de très bon résultats, très agréable à utiliser également.
Remplacée depuis par le modèle professionnel.
Si la lame n'est bas abîmée il est possible de commencer avec cette pierre.
Sinon une pierre plus "agressive" sera necessaire (220 ou 240).
Pour finir un grain 800 puis 2000 vous garantiront un résultat parfait.


Deze steen gekocht in een set van 400, 1000, 3000 en 5000. Door gebruik van meerdere stenen gaat het slijpen sneller. De stenen zijn hard en je ziet het slijpsel al snel van je mes komen. Prima aankoop.

Neemt snel materiaal af van je botte messen, vergt niet veel oefening om messen scherp te krijgen, alleen de juiste hoek houden zodat je mes het mooist blijft is wat moeilijker

Die Chosera starten eh ausser Konkurrenz. Ausgezeichnete Steine, etwas teurer, aber die schafft man sich eh nur einmal an.

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

article_number_site

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_width_useful_part

Dimensions & weight

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

stone_binder

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

fixed_sharpening_angle

* No: the device has a variable adjustable sharpening angle.  
* Yes: the device has one fixed, non-adjustable sharpening angle.

Fixed sharpening angle

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

stone_water

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

Features & functions

sharpstone_package

stone_stand

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

Naniwa Chosera 400 sharpening stone without stand