The **Kai Seki Magoroku 1000/4000 grit** is a high-quality double-sided Japanese sharpening stone to give your knives their razor-sharp edge back, and to maintain this sharp edge. The sharpening stone is made from aluminium oxide with a J1000 grit size, and J4000 on the ohter side. Perfect to sharpen your relatively blunt knife back to medium sharpness before you make it sharp as a razor once more.

## Plastic storage box

This sharpening stone comes in a plastic box that also serves as a sharpening stone holder. This way, you can safely store the sharpening stone in your kitchen cabinet, and use it as a base when you're sharpening.

## How to use the Kai Seki Magoroku sharpening stones

Submerge the stone in water a couple of minutes before use. It is important that the surface of the stone stays wet during use. This enhances the sharpening result and extends the lifespan of the sharpening stone. [Read more about sharpening on a sharpening stone here](/en/ct/video-manual-sharpening-on-a-whetstone.htm).

After use, it's important to dry the sharpening stones thoroughly and then allow them to dry fully at room temperature. Don't place the sharpening stone on a heater or in the sun! This can cause the sharpening stone to crack. Once dried, store them in a dry, dark place.

It is normal and expected that a sharpening stone will wear and become slightly hollow after extended use. In order to keep the surface of your sharpening stone flat, we recommend the [Kai Seki Magoroku Flattening Stone](/en/pt/-kai-seki-magoroku-flattening-stone-ap-0335.htm).

Kai Seki Magoroku AP-0334 double-sided sharpening stone, 1000/4000 grit

grit_general

Kai Seki Magoroku AP-0331 sharpening stone, 2000 grit

stone_abrasive

value_width

value_height

value_length

colour

set_inclusive

grit_size_kato

value_number

value_weight

Kai Seki Magoroku AP-0332 sharpening stone, 4000 grit

Kai Seki Magoroku AP-0333 sharpening stone 8000 grit

Kai Seki Magoroku Flattening Stone AP-0335

brand

notforsale

not_replaced_in

expectedRestockDate

msrp_price

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_storage_box

value_height_usable_part

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

Height usable part

value_length_storage_box

value_length_useful_part

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

value_width_storage_box

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

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_acc_type

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

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.

Kai Seki Magoroku AP-0334 double-sided sharpening stone, 1000/4000 grit