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Set Kasumi Super Stone professional sharpening

€169.00 €138.52
Availability: In stock
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Set Kasumi Super Stone professional sharpening For sharpening your knives with blade on both sides (symmetric) and knives with blade sharpened on one side only
The bos contrains.
-K11 Stone with double face and two different grains 240 for refining, 100 for finishing
-K12 Stone with grain 3000 for a medium polishing of blade and grain 8000 the most thin to levigate the blade and to allow a very sliding cut.
- Two sharpening guide rails.
- Two stones to levigate and make flat the stones after many sharpening operations and to maintain the perpendicularity of the stone.
In case of knives sharpened on one side only, place on the stone only the sharp side with an angle of 45°, on the 4 different grains of the stones. After having sharpened the knife on the inclinated side, put it on the concave side and use grain 3000 and 8000 to polish.
For symetric knives use the guide rails to maintain an angle of 15° and carry out the sharpening process on all the four grains of the two stones , on both sides.
FAQs
What is the ideal length for a chef's knife?
The most common length for a chef's knife is 20 cm (8 inches), which is perfect for most kitchen tasks. However, the ideal choice depends on several factors: Hand size: Smaller hands handle 16–18 cm blades more comfortably, while larger hands may prefer a 21–25 cm blade. Personal habits: Those who favor broad movements and long cuts might lean toward longer knives; those who prioritize precision or work in tight spaces might prefer a shorter blade. Experience level: Beginners tend to choose shorter, more manageable blades, while professionals often prefer 21 or 24 cm knives for greater efficiency. In short, there is no “perfect” size for everyone — the right length should be chosen based on comfort, control, and intended use.
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What’s the best way to store kitchen knives?

Avoid keeping them loose in drawers, where they can get damaged or become a safety hazard. It’s better to use a wooden block, magnetic strip, or blade guard. You can find the right solution in our catalog.
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Do you have professional chef knives?
Yes, in our ecommerce store you will find only professional and high-quality chef knives. Each model is selected to meet the needs of chefs, cooks, and cooking enthusiasts who seek reliable, sharp, and durable tools. We offer a complete range of professional kitchen knives, ideal for precision cutting, meat, fish, vegetables, and much more. You will find slicing knives, santoku, paring knives, and other models commonly used in professional kitchens. We collaborate only with brands recognized at the professional level, such as [e.g., Victorinox, Global, Kai, F. Dick, Ambrogio Sanelli, Wüsthof, etc.], to offer you the best in performance and safety in the kitchen
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Can I put knives in the dishwasher?

It’s highly discouraged. High heat and aggressive detergents can damage both blade and handle. Knives can also knock against other items, dulling the edge.
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What does "blade hardness" mean?

Hardness refers to how resistant the steel is, measured on the Rockwell scale (HRC). The harder the steel, the better it retains its edge—but it’s also more brittle and prone to chipping.
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What materials are used for knife blades?
Blades can be made of stainless steel (rust-resistant), carbon steel (very sharp but delicate), or ceramic (lightweight and razor-sharp but fragile). Premium knives often use Damascus steel or advanced alloys. Not sure which to choose? Contact us—AFcoltellerie has them all.
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What are knife handles made of?
Handles can be made of wood (classic but delicate), plastic (durable and hygienic), or technical materials like micarta or G-10, which are extremely tough and non-slip even when wet.
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What’s the best knife for beginners?
A 20 cm chef’s knife is the most versatile option to start with. Paired with a paring knife, it covers most everyday kitchen needs.
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What are the grooves (granton edge) on a blade for?
The grooves or “granton edge” reduce friction and prevent food from sticking to the blade. They’re especially useful with wet or soft foods like fish, cheese, or vegetables.
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Are there knives for left-handed users?
Yes. Some single-bevel Japanese knives are made specifically for right- or left-handed use. Many universal knives, with a double bevel, work well for both.
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European or Japanese knives: what’s the difference?
European knives are sturdier, with thick, curved blades for rocking cuts and tough ingredients. Japanese knives have thinner, harder blades for clean, precise slicing—but they’re also more fragile. In short: Europeans are durable and versatile, Japanese are sharp and surgical.
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Why is it important to sharpen knives?
A sharp knife is safer and more efficient: it requires less force and delivers precise cuts. A dull blade can slip and increase the risk of accidents.
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How often should I sharpen my knives?
It depends on how often you use them and the type of blade. Generally, regular honing with a honing steel is recommended, along with deeper sharpening every few months or when the knife loses effectiveness.
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Should I use a honing steel or a sharpener?
A honing steel maintains the edge and prolongs the life of the knife, but it doesn’t actually sharpen. To restore the edge, you need a sharpener (manual, electric, or whetstone). The ideal routine is to use both: the honing steel for daily care, the sharpener for periodic maintenance.
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What’s the difference between a smooth, grooved, or ceramic honing steel?
A smooth steel realigns the edge without removing metal. A grooved one has a slightly abrasive action, taking off a small amount of material. A ceramic steel is gentler and suitable even for hard blades like Japanese knives.
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How do you correctly use a honing steel?
Hold the steel vertically and draw the blade across both sides at a 15–20° angle using light, steady strokes. Just a few passes are enough to maintain the edge.
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Can I sharpen any type of knife?
Almost all types, but be careful with serrated or ceramic blades: they require specific tools or techniques. Always check the manufacturer's guidelines or ask us for advice.
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What do Kasumi accessories include?
Kasumi accessories include tools dedicated to sharpening, protecting and storing blades correctly. They are not simple add-ons, but elements that directly affect how efficiently and safely a knife can be maintained over time.
What are they really for?
They make knife ownership sustainable in the long term. A good accessory prevents storage mistakes, reduces the risk of edge damage and helps preserve cutting qualities for longer, especially with higher-performing Japanese lines that are more sensitive to improper use.
How should they be chosen correctly?
The choice depends on actual function: sharpeners and stones for edge maintenance, guards and cases for storage, and dedicated supports or organisational solutions for workflow. The correct logic is not to buy accessories generically, but to build a coherent system around the way the knife is really used.
How should they be managed over time?
Accessories also require care: they should be kept clean, used correctly and replaced when they no longer perform their job well. An unsuitable or worn accessory can compromise a blade just as much as incorrect knife use.
What truly distinguishes Kasumi knives within the Japanese knife market?
Kasumi occupies a very interesting position because it strikes a balance between Japanese tradition and real-world accessibility. Its use of VG-10 steel, often combined with Damascus-style layering, allows for strong edge retention and refined cutting performance without necessarily reaching the most extreme hardness levels, which can make a knife more demanding to handle. This makes Kasumi a brand that offers aesthetics, precision and reliability, while remaining more approachable than more elite and demanding lines.
How should the differences between Kasumi series be understood?
Kasumi series differ not only in appearance, but also in their philosophy of use. The Damascus VG-10 line represents the brand’s balance of tradition and visual appeal; VG-10 Pro is geared toward more professional, continuous use; HM Hammered adds a functional benefit in food release; Titanium and Ceramic explore alternative materials; while Tora offers an easier entry point into Japanese knives. Understanding these differences is essential in order to choose based on use, rather than on looks alone.
Who is Kasumi, as a brand, really suited for?
Kasumi is particularly well suited to users who want to enter the world of Japanese knives with serious tools, but without immediately moving into the most extreme premium segment. It is ideal for advanced home cooks, enthusiastic users and also for less demanding professional environments, where a good balance of performance, durability and ease of maintenance matters.
How should someone choose the right Kasumi series in an informed way?
The choice should begin with actual use. Those who cook frequently and want strong performance may prefer VG-10 Pro or HM Hammered; those drawn to aesthetics and tradition may lean toward Damascus VG-10; users seeking greater ease of use may choose Tora; and those with specific needs may consider Ceramic or Titanium. The real question is not which line is objectively best, but which one best matches the way the knife will actually be used.
What is the right maintenance approach for Kasumi knives?
Kasumi knives require the kind of care typically associated with Japanese knives, although the level of tolerance varies depending on the series. VG-10-based lines require more attention in sharpening and everyday use, while series such as Tora or Titanium tend to be slightly more forgiving. In every case, hand washing, immediate drying and the use of suitable cutting boards remain essential.
What distinguishes Japanese knives from Western ones?
Thinner geometries, sharper edge angles and an approach focused on precision and clean cutting.
Santoku or Gyuto: which should you choose?
The santoku is compact and versatile for everyday use; the gyuto is closer to a classic chef’s knife and is ideal for long cuts and sustained work.
Are Japanese knives more delicate?
Yes, they often require more care: they are not suitable for bones, frozen foods or twisting, but offer superior cutting performance when used correctly.
How do you properly sharpen a Japanese knife?
Whetstone sharpening is ideal: a medium grit for maintenance and a finer grit for finishing, adapting the choice to the steel and usage.
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