KAI

KAI — A Century of Seki Blade-Making, Worldwide

KAI Corporation (貝印), founded in Seki in 1908, is the world's largest Japanese knife manufacturer and the company behind Shun (旬) and Seki Magoroku. For many knife users around the world, a Shun or a Seki Magoroku was their very first real Japanese knife — a gateway that opened the door to an entire world of Japanese blade craft. Now in its fourth generation under Hiroaki Endo, KAI acquired various brands like Zero Tolerance and Kershaw and operates globally from Tokyo, combining over a century of blade-making heritage with modern manufacturing at scale.

貝印 — the kanji literally means "shell mark," a reference to the company's original trademark. What started in 1908 as a pocket knife workshop by Saijiro Endo (遠藤斉治郎) in Seki City has grown into one of the world's largest blade manufacturers, with over 10,000 products spanning kitchen knives, razors, medical instruments, and industrial blades. But for the knife community, KAI matters because of one thing: they brought Japanese knives to the world.

The Endo family has led KAI through four generations. The second-generation Saijiro expanded into razors after the war, creating Japan's first disposable razor. By the 1970s, the company had entered kitchen knife production and begun exporting internationally. The real game-changer came in 2000 with the launch of Shun (旬) — a premium line that combined traditional Japanese blade geometry with Western handle ergonomics and striking Damascus patterns. Shun became a global phenomenon, selling over 10 million units, and for millions of home cooks and professional chefs outside Japan, it was their first encounter with what a Japanese knife could do.

KAI's Seki Magoroku (関孫六) line carries the name of a legendary Muromachi-era swordsmith from Seki, connecting the brand directly to the city's 800-year blade-making heritage. While these are factory-produced knives rather than artisan-forged, the engineering and quality control behind them is serious — KAI's Seki factory is one of the most advanced knife production facilities in Japan, blending robotics and IoT systems with traditional heat treatment knowledge.

Today, under fourth-generation president Hiroaki Endo (遠藤浩彰), KAI operates subsidiaries in the USA, Germany, China, and India. They've won numerous design awards and continue to push boundaries — from the VG-MAX steel developed specifically for Shun to eco-friendly paper razors. Love them or debate them, KAI's role in globalising Japanese knife culture is undeniable. They opened the door that many of us walked through.

“The world's gateway to Japanese knives — Shun, Seki Magoroku, and a century of Seki blade-making at global scale.”

Est. 1908 | 明治41年

Known for Shun premium knives, Seki Magoroku line, world's largest Japanese knife manufacturer

Website kai-group.com

People

Founder: Saijiro Endo 遠藤斉治郎
Current Head: Hiroaki Endo 遠藤浩彰

Craft

Known For: Shun premium knives, Seki Magoroku line, world's largest Japanese knife manufacturer
Steel: VG-MAX, VG10, AUS10A

Location

Address: 1110 Oyana, Seki, Gifu 501-3941, Japan
Region: Seki, Japan
Coordinates: 35.4874842, 136.8715381

Brand

Logo

Native Name

貝印株式会社

Why KAI Matters

KAI is arguably the single most important company in bringing Japanese kitchen knives to the global mainstream. Founded in 1908 by Saijiro Endo (遠藤斉治郎) as a pocket knife workshop in Seki, the company grew into a comprehensive blade manufacturer with over 10,000 products. The launch of Shun (旬) in 2000 was a watershed moment — it introduced millions of Western home cooks to the concept of a Japanese-style knife. For many people around the world, a Shun or a Seki Magoroku was their very first real Japanese knife. Now led by 4th generation Hiroaki Endo, KAI operates globally with subsidiaries in the USA, Germany, and beyond.

Does KAI Allow Unsolicited Visits?

Not open to public visits.

Knives by KAI

Shun Premier

For a lot of people, a Shun was the knife that started it all — the first time they realised a kitchen knife could actually be sharp. The Premier line from K... Read more

For a lot of people, a Shun was the knife that started it all — the first time they realised a kitchen knife could actually be sharp. The Premier line from KAI is arguably the most refined expression of that idea. Built around KAI's proprietary VG-MAX core steel — an evolution of VG10 with improved edge retention and corrosion resistance — the blade is clad in 68 layers of stainless Damascus and finished with a tsuchime (hammered) texture that isn't just for show. The dimples genuinely help with food release, which is a nice bonus on a blade that's already pretty well ground.At around 60-61 HRC, the VG-MAX edge holds up noticeably longer than standard VG10 before needing a touch-up, and because everything here is fully stainless, maintenance is about as low as it gets — rinse, wipe, done. The contoured walnut-toned Pakkawood handle feels immediately comfortable in a Western grip and gives the Premier a warmer, more organic look compared to the Classic line's black D-shape.The lineup covers the basics — chef's knife (20cm), santoku (18cm), utility (16cm), paring (10cm), and a bread knife — all with the same 16-degree edge geometry. These aren't artisan-forged knives and they don't pretend to be. What they are is remarkably well-engineered factory knives with excellent consistency, a genuinely sharp edge out of the box, and a fit and finish that most people will never need to look past. If you're buying your first serious knife, or you want something that just works without any fuss, the Premier is a very safe bet. Read less

Pros

Ideal for the household
Excellent fit and finish

Cons

Relatively hard to sharpen
High budget

Sanmai - Stainless Damascus Clad Tsuchime

Shun Classic

The Shun Classic is where it all started for a lot of knife enthusiasts — the knife that made people realise there's a world beyond the German block set.... Read more

The Shun Classic is where it all started for a lot of knife enthusiasts — the knife that made people realise there's a world beyond the German block set. KAI's flagship line has been quietly converting home cooks for over two decades, and the current version with VG-MAX steel is the best it's ever been. VG-MAX is KAI's proprietary evolution of VG10 — a fully stainless core running at 60-61 HRC that holds a 16-degree edge longer than you'd expect from a factory knife at this price.The 34-layer stainless Damascus cladding gives it that distinctive wave pattern that's become almost synonymous with “Japanese knife” in mainstream cooking culture. The blade is polished and well-ground — it's not the thinnest knife out there, but the geometry is sensible for an all-rounder, handling everything from onions to herbs to breaking down a chicken without feeling like you need to baby it. It's a workhorse, and it's designed to be treated like one.The black Pakkawood D-shape handle is comfortable for extended use and works well for both pinch grip and handle grip users. The lineup covers the essentials — chef's knife (20cm), santoku (18cm), utility (15cm), paring (9cm), and bread knife (22cm). If there's a knock on the Classic, it's that VG-MAX can be a bit stubborn on the stones compared to simpler carbon steels — but that's the trade-off for a blade you can leave on a magnetic rack without worrying about rust. For someone stepping up from a supermarket knife, the Shun Classic is still one of the best entry points into Japanese knives. Read less

Pros

Great OOTB
Easy to look after
Excellent fit and finish
Workhorse grind

Cons

Relatively hard to sharpen
Not the thinnest geometry

Sanmai - Stainless Damascus Clad Migaki

Kai Seki Magoroku Imayo

The Kai Seki Magoroku Imayo line brings the heritage of Seki's legendary swordsmith Magoroku into your modern kitchen with a practical twist. Part of KAI... Read more

The Kai Seki Magoroku Imayo line brings the heritage of Seki's legendary swordsmith Magoroku into your modern kitchen with a practical twist. Part of KAI's extensive Seki Magoroku family, the Imayo series combines traditional tsuchime (hammered) aesthetics with contemporary performance, making it an excellent entry point for those discovering Japanese knife culture.Built from 1K6 molybdenum vanadium stainless steel hardened to 56±1 HRC, these knives offer the sweet spot between durability and sharpness retention. The 1K6 steel, with its 0.6% carbon content and 13.5% chromium, delivers reliable edge holding while remaining completely stainless — perfect for busy kitchens where maintenance time is limited. It's not the hardest steel you'll encounter, but that's actually a feature: it makes the knives easy to sharpen and forgiving to use.The signature tsuchime (hammered) finish isn't just for show. Those deliberate dimples across the blade surface create tiny air pockets that help food release cleanly, reducing that annoying sticking you get with mirror-polished knives. Combined with KAI's precision factory grinding and Western-style pakkawood handles, the Imayo line offers a comfortable, practical introduction to Japanese knife geometry without the intimidation factor of more traditional designs.At this price point, the Imayo represents excellent value. You're getting genuine Japanese craftsmanship from Seki City's most established manufacturer, solid stainless steel performance, and that distinctive hammered aesthetic that makes these knives stand out in any kitchen. They're built for daily use, dishwasher-safe (though hand washing is always better), and backed by KAI's century-plus reputation for reliable cutlery. Read less

Pros

Budget friendly
Easy to look after
Ideal for the household
Great OOTB

Cons

Non-premium steel
On the thicker side

Monosteel Nashiji

Frequently Asked Questions about KAI

Who is KAI?

KAI is a Japanese knife maker based in Seki, Japan , established in 1908. They are known for Shun premium knives, Seki Magoroku line, world's largest Japanese knife manufacturer. Their signature steels include VG-MAX, VG10, AUS10A. Available at Knives and Stones Australia.

What knives does KAI make?

KAI produces the following knife lines: Shun Premier, Shun Classic, Kai Seki Magoroku Imayo. We currently carry 12 products from KAI at Knives and Stones. They specialise in Shun premium knives, Seki Magoroku line, world's largest Japanese knife manufacturer.

Where is KAI located?

KAI is located in Seki, Japan. Japanese knife-making regions each have distinct traditions. Seki in Gifu Prefecture has a 700-year bladesmithing history and is Japan's largest knife production centre.

Where can I buy KAI knives in Australia?

Knives and Stones is an authorised Australian stockist of KAI. You can shop online at knivesandstones.com.au with free shipping on orders over $99, or visit our stores in St Peters (Sydney), Crows Nest (Sydney) and Braddon (Canberra) to handle the knives before buying.

Craft

Location

Brand

Why KAI Matters

Does KAI Allow Unsolicited Visits?

Knives by KAI

Shun Premier

Shun Classic

Kai Seki Magoroku Imayo

Shop KAI Knives

Shun Premier Bread Knife 23cm

Shun Premier Chef's Knife 20cm (8")

Shun Premier Utility Santoku 18cm (7")

Shun Premier Utility Knife 16cm (6.5")

Shun Premier Paring Knife 10cm (4")

Shun Classic Bread Knife 22cm (9")

Shun Classic Chef's Knife 20cm (8")

Shun Classic Santoku Knife 18cm (7")

Shun Classic Utility Knife 15cm (6")

Shun Classic Paring Knife 9cm (3.5")

Kai Seki Magoroku Imayo MV Tsuchime Gyuto Knife 210mm

Kai Seki Magoroku Imayo MV Tsuchime Petty Knife 120mm

Visit Us In Person

St Peters

Crows Nest

Canberra

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