8000 sharpening stone, Kuromaku SHAPTON K0710 melon
Code: SHA-K0710Product detailed description
Japanese SHAPTON Kuromaku JIS #8000 sharpening stone
An ultra-fine polishing water stone for the final smoothing of the bevel, removal of the remaining burr and creation of an exceptionally fine edge on high-quality knives.
SHAPTON Kuromaku JIS #8000 is a specialised Japanese polishing stone intended for the final stage of sharpening. It is used only on an edge that has already been correctly formed and refined on lower-grit stones.
The fine #8000 grit smooths the sharpening bevel, removes minor marks left by the previous stone and helps create a clean cutting edge suitable for precise slicing. It provides the greatest benefit for high-quality Japanese kitchen knives, slicing knives and blades intended for exceptionally fine work.
The hard structure of the Kuromaku range provides precise feedback while guiding the blade and wears slowly. The practical plastic case makes storage easier and can also be used as a basic stand while polishing the edge.
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What can #8000 grit achieve?
Final smoothing of the bevel
The extremely fine abrasive particles refine the surface left by the previous stone and remove minor sharpening marks.
Clean and precise cutting edge
Correct finishing can create a fine edge that passes smoothly through ingredients and enables highly precise cuts.
Gentle polishing of quality steels
The stone removes only a small amount of material and is suitable for the precise finishing of hard Japanese and high-quality European knife steels.
Hard stone with low water absorption
The stone does not require prolonged soaking. Before use, simply wet the working surface and keep it moist during polishing.
The #8000 stone cannot repair a dull edge
The #8000 grit is intended only for final polishing. A dull or damaged knife must first be sharpened on a suitable basic stone and then progressively refined through finer grits. Using #8000 directly on a dull knife would be slow and inefficient.
Which knives is #8000 suitable for?
- high-quality Japanese kitchen knives with fine geometry,
- Sujihiki, Yanagiba and Sashimi slicing knives,
- Gyuto, Santoku, Nakiri, Kiritsuke and Petty knives,
- hard carbon, stainless and powder-metallurgy knife steels,
- final finishing after a #5000 stone,
- highly precise slicing of meat, fish, vegetables and herbs,
- experienced home users, professional chefs and sharpeners,
- fine finishing of selected carving and woodworking tools.
Technical specifications
| Brand | SHAPTON |
|---|---|
| Product line | Kuromaku |
| Grit | JIS #8000 |
| Use | Ultra-fine polishing and final edge finishing |
| Abrasive | Silicon carbide (SiC) |
| Dimensions | 210 × 70 × 15 mm |
| Weight | 200 g |
| Colour | Melon green |
| Product code | SHA-K0710 |
| EAN | 4944509307108 |
| Country of manufacture | Japan |
Recommended sharpening progression
| Grit | Task | When to use it |
|---|---|---|
| #220 | Edge repair | Very dull or slightly damaged knife, adjustment of the bevel angle. |
| #1000 | Basic sharpening | Creating a new, continuous working edge. |
| #1500 to #3000 | Refinement | Smoothing coarser marks and preparing the edge for polishing. |
| #5000 | Fine finishing | Preparing a fine and even bevel before final polishing. |
| #8000 | Final polishing | The final step for an exceptionally fine, precise and smooth edge. |
The ideal previous step is the SHAPTON Kuromaku #5000. It prepares a fine bevel, which the #8000 stone then smooths and finishes.
Does every kitchen knife need #8000 grit?
No. For most ordinary kitchen tasks, a #3000 or #5000 stone already provides an excellent edge. The #8000 grit is especially appreciated by owners of fine Japanese knives and slicing blades, and by users who require an exceptionally smooth and precise cut.
A fine or more “toothy” working edge?
An extremely finely polished edge passes easily through soft ingredients and is suitable for precise slicing. For some everyday kitchen tasks, however, it may be more practical to finish sharpening on a lower grit that preserves a more pronounced microscopic structure on the edge.
The choice of the final stone therefore depends on the type of knife and its intended use. A slicing knife for fish or meat may benefit significantly from the fineness of #8000, while a universal working knife can often be finished on #3000 or #5000.
A mirror polish is not the only measure of quality
SHAPTON Kuromaku may leave a very fine matt or semi-gloss surface on the bevel. The resulting performance depends primarily on correct geometry, an even bevel, complete burr removal and a clean cutting edge.
How to use SHAPTON Kuromaku #8000
- First finish sharpening on a lower grit. Before using #8000, the edge must already be sharp and free from damage.
- Briefly wet the stone. Prolonged soaking is not suitable.
- Ensure a stable position. The case can be used as a stand, but it must not slip.
- Maintain the angle created during the previous sharpening stage.
- Use minimal pressure. During the final stage, work almost entirely with the weight of the blade.
- Use slow and controlled strokes.
- Alternate both sides of the edge regularly.
- Make the final strokes extremely lightly to remove the remaining burr.
- Rinse and immediately dry the knife.
Learn how to finish an edge correctly
During the practical knife-sharpening course, you will learn how to create a continuous edge, progress correctly through the individual grits and remove the burr without unnecessarily rounding the cutting edge.
Care of the #8000 polishing stone
- Only wet the stone briefly before use.
- Do not leave it submerged in water for extended periods.
- Keep the surface wet with clean water while working.
- Rinse the stone after use without detergent.
- Allow it to dry slowly at room temperature.
- Do not place it on a heater or in direct sunlight.
- Place only a completely dry stone in the case.
- If a hollow develops, carefully flatten the working surface.
Holders, cleaning aids and stone-flattening tools can be found in the sharpening accessories category. All available grits can be found in the SHAPTON Kuromaku category.
Who is the stone suitable for?
SHAPTON Kuromaku #8000 is suitable for experienced home users, professional chefs, sharpeners and owners of high-quality Japanese knives who want to finish the edge to an exceptionally fine level. It is particularly suitable for slicing knives and blades intended for precise cuts.
Who is it not suitable for?
The stone is not suitable as the first or only sharpening stone. It will not repair a dull, jagged or chipped edge and is not intended for ceramic knives. Beginners should first master basic sharpening on a #1000 grit stone.
Need help choosing the correct grits?
Call us at +420 702 049 048, Monday to Friday between 7:30 and 16:00. We will help you create a sharpening progression according to the knife type, steel hardness and desired result.
Frequently asked questions
What is the #8000 sharpening stone intended for?
It is used for the final polishing of an already sharpened edge, refinement of the bevel and removal of very fine marks left by the previous stone.
Can a dull knife be sharpened on the #8000 stone?
Not efficiently. A dull edge must first be created on a basic stone such as #1000 and then progressively refined.
Which stone should be used before #8000 grit?
A fine stone of approximately #5000 is the most suitable. Before final polishing, the edge must already be correctly sharpened and smoothed.
Does every kitchen knife need to be finished on #8000?
No. For most ordinary kitchen tasks, #3000 or #5000 is sufficient. The #8000 grit is intended for exceptionally fine and precise edges.
Will SHAPTON Kuromaku #8000 create a mirror polish?
The stone significantly refines the bevel, but the result may not be a perfectly mirrored surface. Functional sharpness is not determined solely by the appearance of the bevel.
Does the #8000 stone need to be soaked?
No. It only needs to be briefly wetted before use. Prolonged soaking of SHAPTON polishing stones is not recommended.
Is the stone suitable for hard Japanese steels?
Yes. It is also suitable for hard Japanese knife steels, provided that the edge has first been correctly formed on lower grits.
Can the plastic case be used as a holder?
Yes. The case can serve as a basic stand, but its stability should be checked before sharpening.
Is the stone suitable for ceramic knives?
No. Ceramic knives require sharpening equipment intended specifically for ceramic blades.
How do I know when the stone needs flattening?
Flatten the stone as soon as a hollow appears on its working surface or the surface is no longer flat.
Additional parameters
| Category: | Shapton Kuromaku – Sharpening Stones |
|---|---|
| Warranty: | 2 years |
| Weight: | 0.2 kg |
| EAN: | 4944509307108 |
| production: | Japan |
SHAPTON – Japanese specialist in sharpening stones
SHAPTON Co., Ltd. is a Japanese manufacturer of synthetic sharpening stones and accessories for precise edge maintenance. The brand is known for fast abrasive action, a stable structure and a wide choice of grits for kitchen knives and craft tools.
SHAPTON is based in the town of Mashiko in Japan’s Tochigi Prefecture. The company focuses on developing sharpening stones that allow fast, controlled and highly repeatable edge work. Its products are used by professional sharpeners, chefs, craftspeople and home users who want to maintain their knives by hand.
SHAPTON sharpening stones feature a high concentration of abrasive particles and a carefully designed bonding system. This allows them to remove material efficiently, provide clear feedback during sharpening and wear more slowly than many softer stones. The wide grit range makes it possible to repair a damaged edge, create a new bevel, restore ordinary working sharpness and carry out extremely fine final polishing.
You can find the complete selection in the SHAPTON sharpening stones category.
Why are SHAPTON stones so popular?
Fast abrasive action
The high abrasive content makes it possible to restore the bevel effectively even on harder modern steels. With correct technique, there is therefore no need to apply heavy pressure to the blade.
No long soaking required
SHAPTON stones are designed for quick preparation. Before sharpening, the surface is usually only moistened with water, allowing you to start working without a long wait.
Lower wear
The optimised bonding system helps use the abrasive particles more efficiently. The stones therefore retain their working properties for a relatively long time, although their flatness still needs to be checked regularly.
Wide range of grits
From coarse repair stones to extremely fine polishing stones. Users can create a progressive sharpening sequence according to the condition of the knife, the steel used and the desired result.
Main SHAPTON sharpening-stone ranges
SHAPTON Kuromaku
Kuromaku is the classic range of solid synthetic sharpening stones. Individual grits are colour-coded, making it easier to distinguish between multiple stones while working. Each stone comes with a practical plastic case that can also be used as a base during sharpening.
SHAPTON GlassStone
The GlassStone range uses a thin abrasive layer firmly bonded to a glass base. The glass support provides dimensional stability and makes even a thin abrasive layer easier to handle. The extensive grit selection allows users to build a progression from basic sharpening to an exceptionally fine finish.
SHAPTON RockStar
RockStar is a modern premium range combining strong abrasive performance, a uniform structure and a finely controlled result. It is also designed for hard blades and users who want fast work without long soaking.
Which SHAPTON grit should you choose?
The brand or product range itself does not influence the result as much as choosing the correct grit. A coarse stone removes steel quickly, while a fine stone smooths the marks left by previous sharpening and refines the finished edge.
| Grit | Suitable use | Who it is suitable for |
|---|---|---|
| #120–#500 | Repairing a damaged edge, changing the bevel and working on a very dull knife. | More experienced users and repair sharpening. |
| #1000 | Restoring ordinary working sharpness and creating a new cutting edge. | The best first stone for most kitchen knives. |
| #1500–#3000 | Smoothing the bevel and providing a finer finish after basic sharpening. | Home cooks and more demanding users. |
| #4000–#8000 | Fine finishing and polishing of high-quality kitchen knives. | Japanese knives and blades requiring a smooth finish. |
| #12000–#16000 | Extremely fine specialised polishing after the previous stages. | Experienced sharpeners and specific edge-surface requirements. |
A simple recommendation for beginners
When buying your first sharpening stone, begin with #1000 grit. Add a #3000 stone for a finer finish. A coarse stone around #320 or #500 makes sense when the edge is damaged or significantly dull.
Maintaining SHAPTON sharpening stones
During sharpening, the working surface of every water stone gradually wears and may become hollow in the centre. An uneven stone makes it harder to control the angle and can result in an irregular bevel. It is therefore important to clean the surface continuously and flatten it when necessary.
- Moisten the stone before use according to the instructions for the specific range.
- Keep sufficient water on the surface while sharpening.
- Remove sharpening slurry and metal particles after use.
- Check the flatness of the working surface regularly.
- Allow the stone to dry naturally away from direct heat.
- Store the dry stone so that it cannot fall or suffer mechanical damage.
Holders, lapping tools, cleaning discs and other equipment can be found in the sharpening accessories category.
Would you like to learn how to sharpen correctly?
A high-quality sharpening stone is only part of the solution. Maintaining a stable angle, creating a burr, applying pressure correctly and progressing through the individual grits are equally important.
View the knife-sharpening course ›Frequently asked questions about SHAPTON
Where does the SHAPTON brand come from?
SHAPTON is a Japanese company based in the town of Mashiko in Tochigi Prefecture, Japan.
What makes SHAPTON sharpening stones special?
They stand out for their fast abrasive action, high abrasive content, good dimensional stability and wide choice of grits.
Do SHAPTON stones require long soaking?
Usually not. SHAPTON stones are designed for quick use after the surface has been moistened with water. Always follow the instructions for the specific product.
Which SHAPTON stone should I choose first?
For ordinary kitchen knives, #1000 is the most universal grit. It restores the working edge without removing material as aggressively as repair stones.
What is the difference between Kuromaku, GlassStone and RockStar?
Kuromaku stones are classic solid, colour-coded stones in a case. GlassStone uses an abrasive layer on a glass base. RockStar is a modern premium range with fast and even abrasive action.
Are SHAPTON stones suitable for hard Japanese steels?
Yes. A correctly selected SHAPTON stone can also be used on many hard Japanese steels. The appropriate grit, a stable angle and moderate pressure are decisive.
Can tools also be sharpened on SHAPTON stones?
Yes. Depending on the chosen range and grit, they can also be used to sharpen chisels, plane irons and other cutting tools.
Why does a sharpening stone need to be flattened?
The stone may wear unevenly during use. A flat surface improves angle control, blade contact and the consistency of the finished bevel.
Need help choosing?
We will help you select a suitable SHAPTON range and progressive grits according to the knife type, condition of the edge and your experience. Contact Dellinger on +420 702 049 048 on working days between 7:30–16:00.
| EU representative of the manufacturer : | Dellinger s.r.o. |
|---|---|
| Address of the EU representative : | Rižská 1580/7 102 00 Praha |
| Email of the EU representative : | saleseu@dellinger.cz |