120 sharpening stone, Kuromaku SHAPTON K0701 white
Code: SHA-K0701Product detailed description
Shapton Kuromaku JIS #120 – fast repair of a damaged edge
A very coarse Japanese water stone for rapid material removal, repairing a damaged cutting edge and creating a new bevel before progressing to finer grits.
Shapton Kuromaku JIS #120 is a very coarse synthetic sharpening stone intended for work where a basic #1000 stone would remove material too slowly. It helps repair a severely dull edge, remove minor chips, adjust bevel geometry or quickly thin the blade behind the edge.
The JIS #120 grit is not intended for final knife sharpening. Once the repair is complete, you must continue with finer stones, for example #320 followed by #1000. This removes the deep grinding marks and creates a usable working edge.
The stone is made from a silicon carbide SiC-based abrasive. The package includes a practical plastic case that protects the stone during storage and can also be used as a basic stand while sharpening.
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When should you choose Shapton Kuromaku #120?
Severely dull edge
The very coarse abrasive quickly creates a new cutting edge where working on a #1000 stone would take unnecessarily long.
Minor chips and damage
The stone helps remove minor damage from the cutting edge and prepares the blade for more precise sharpening on finer grits.
Changing the angle and bevel geometry
Its high sharpening performance makes it possible to create a new bevel more quickly, change the sharpening angle or adjust the area immediately behind the edge.
Knives and craft tools
In addition to steel knives, the stone can also be used for selected woodworking tools and gardening equipment. It is not intended for ceramic knives.
JIS #120 is not a universal first stone
If the knife is only normally dull and the edge is not damaged, it is better to start at around #1000 grit. Kuromaku #120 removes material very quickly and is intended mainly for repairs and more substantial bevel adjustments.
Technical specifications
| Parameter | Value |
|---|---|
| Brand | SHAPTON |
| Product line | Shapton Kuromaku |
| Type | Very coarse synthetic water sharpening stone |
| Grit | JIS #120 |
| Abrasive | Silicon carbide – SiC |
| Colour | White |
| Stone dimensions | 210 × 70 × 15 mm |
| Weight | 0.2 kg |
| Case | Plastic case usable as a basic stand |
| Country of manufacture | Japan |
| Product code | SHA-K0701 |
| EAN | 4944509307016 |
Recommended sharpening progression
1. Repair on the #120 stone
Remove the damage and create a continuous new bevel. Work carefully and monitor material removal throughout the process.
2. Removing coarse grinding marks
After the #120 stone, continue with approximately #320 grit. This refines the deep grinding marks and prepares the bevel for basic sharpening.
3. Creating the working edge
Create a functional cutting edge on a stone of approximately #1000 grit. Depending on the desired result, you can then continue with a finer grit.
Why not go directly from #120 to a fine stone?
An excessively large jump between grits significantly prolongs sharpening. The fine stone must spend a long time removing the deep scratches left by #120. Progressing through an intermediate #320 stone and a basic #1000 stone is faster and easier to control.
How should the stone be used correctly?
- Place the stone on a stable non-slip surface or use the supplied case as a basic stand.
- Wet the working surface with clean water. Do not leave the stone submerged for long periods.
- Choose the required sharpening angle and keep it as stable as possible while working.
- Guide the blade smoothly and use only moderate pressure.
- Check the condition of the edge regularly because the #120 grit removes material very quickly.
- Once the damage has been removed, move to a finer grit.
- Rinse the stone after use and allow it to air-dry.
Working safely
During sharpening, guide the edge in a safe direction away from your fingers. The stone must rest on a flat and stable surface. Do not use excessive pressure on thin, hard Japanese blades and avoid twisting the blade.
Plastic case and stability during sharpening
The plastic case protects the stone during storage and can also be used as a basic stand. Before sharpening, check that it stands securely and does not move across the work surface.
For more frequent or demanding sharpening, we recommend using a separate adjustable holder and a non-slip mat. Stable support makes it easier to guide the blade and helps maintain the chosen sharpening angle.
Choose sharpening accessories ›
Flattening and maintaining the stone
Coarse sharpening produces a larger amount of sharpening slurry and gradually wears down the stone. Therefore, check the working surface regularly. If a hollow develops in the centre, the stone needs to be flattened.
A flat working surface is especially important when creating a new bevel and sharpening wide blades, chisels and plane irons. Use a suitable lapping plate or flattening tool.
- Remove sharpening slurry and metal particles after sharpening.
- Rinse the stone with clean water.
- Do not dry it on a radiator or with direct hot air.
- Allow the stone to dry thoroughly before storage.
- Do not close a damp stone inside the plastic case.
- Oil can be used, but we do not recommend it for routine maintenance.
Learn to sharpen at the correct angle
During the knife-sharpening course, you will practise blade guidance, pressure control, burr formation and the correct progression of individual grits.
View the knife-sharpening course ›Who is Shapton Kuromaku #120 suitable for?
- more experienced users repairing damaged edges,
- severely dull and long-neglected steel knives,
- creating a new bevel or changing the sharpening angle,
- faster thinning of the blade behind the edge,
- selected woodworking and gardening tools,
- users who also own the required finer follow-up stones.
Who is it not suitable for?
The stone is not suitable as the only stone for routine maintenance of slightly dull knives or for final edge finishing. It is not intended for ceramic knives.
View all Shapton Kuromaku stones ›
Need advice?
We will help you choose a suitable coarse stone and the follow-up grits according to the condition of the knife and the type of steel. Contact us at +420 702 049 048, Mon–Fri, 7:30–16:00.
Frequently asked questions
What is a JIS #120 sharpening stone used for?
It is used for rapid repair of a severely dull or damaged edge, removal of minor chips and creation of a new bevel.
Is Shapton Kuromaku #120 suitable for routine sharpening?
It is too coarse for a normally dull knife. In such cases, it is better to start at around #1000 grit.
Do I need to use a finer stone after #120?
Yes. The #120 grit leaves deep grinding marks. We recommend continuing through #320 and then approximately #1000.
Does the stone need to be soaked before use?
Kuromaku stones have low water absorption. Simply wet the surface with water; the coarse stone may be briefly submerged if necessary, but it should not remain in water for long periods.
Can the plastic case be used as a holder?
Yes, the case can be used as a basic stand. Always check that it is positioned on a flat surface and does not move during sharpening.
Is the stone suitable for hard Japanese steels?
Yes, it can also be used for harder knife steels. However, because of the rapid material removal, you must work carefully and without excessive pressure.
Is the stone suitable for ceramic knives?
No. Shapton Kuromaku #120 is intended for steel knives and selected steel tools, not ceramic blades.
How often does the stone need flattening?
It depends on how intensively and in what way it is used. Flatten it whenever a hollow develops in the working surface or even contact with the bevel can no longer be maintained.
How should the stone be stored after use?
Rinse it, allow it to air-dry thoroughly and only then place it in the plastic case. Do not store a damp stone in a closed container.
Additional parameters
| Category: | Shapton Kuromaku – Sharpening Stones |
|---|---|
| Warranty: | 2 years |
| Weight: | 0.2 kg |
| EAN: | 4944509307016 |
| production: | Japan |
| The item has been sold out… | |
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 |