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Hatsukokoro  |  SKU: HS-ST-B2KU-CH175

Hatsukokoro Sentan Blue 2 Stainless Clad Chinese Cleaver 170mm

Regular price $199.95

IMPORTANT: Carbon steel knives can rust or patina quickly if not cared for properly. They require regular cleaning, drying, and oiling. If you are unfamiliar with carbon steel maintenance, we recommend choosing a stainless steel option instead.

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Availability

  • St Peters, NSW —
    2 Bishop St, Unit 2, St Peters NSW 2044
  • Crows Nest, NSW —
    107 West St, Shop 1, Crows Nest NSW 2065
    Pickup only
  • Prahran, VIC —
    180 Commercial Road, Shop 1, Prahran VIC 3181
    Pickup only
Detailed Specifications
Line Sentan Blue 2 Kurouchi Stainless Clad
Profile Chuka (Cleaver) / Chinese cleaver
Bevel Type Double Bevel
Weight 322 g | 11.4 oz
Edge Length 178 mm | 7 1/64″
Heel Height 78 mm | 3 5/64″
Width @ Heel 4.8 mm | 3/16″
Width @ Mid 4.1 mm | 5/32″
Width @ 1cm from Tip 3.4 mm | 9/64″
Steel Blue 2 / Aogami #2 | Carbon
Blade Construction Sanmai - Stainless Clad
Hardness (HRC) 61 - 63
Surface Finish Kurouchi
Handle Cleaver Handle
Region Other
Best for
  • Pro chefs
  • Students
  • Free shipping for knives over AU$200 Australia wide.
  • World-wide shipping via DHL Express, 3 to 5 days.


Sentan Blue 2 Kurouchi Stainless Clad series is the sister line of the White 2 cleavers under the same brand, it keeps the low maintenance stainless Sanmai structure, changes the core steel to the Blue 2 and now has a more uniform Kurouchi finish. Featuring a variety of different profiles, this is a line that can easily fulfil your need for Chinese cleavers regardless of the specific task you need to complete.

There is an existing blank in the market of Chinese cleavers. From what we can see, Japanese makers rarely forge this type of knife and they tend to create a blade that has a different sectional profile compared to Chinese ones. This leads to different cutting behaviour and often heavier weight. On the other hand a reputable maker like CCK would forge their knife down to the thickness of a leaf with excellent cutting performance and balance, but the lower edge retention and high maintenance can often put off many potential users.

This is a line that is designed in house by Knives and Stones to fulfil this blank, our aim was to create a series of authentic Chinese cleavers, while incorporating the characteristics and performances you would find on a fine Japanese knife. We chose the classic Hitachi Blue 2 carbon steel for its high carbon content, then a layer of stainless cladding was forged on each side to create a low maintenance blade. As a result, we get an aggressive cutting  edge made with a pretty hard carbon steel that is only exposed on the very edge of the blade, most of the blade would be free from rusting or patina and even if the exposed carbon steel rusts, they can be removed easily by sharpening.

The blade is forged into shape before the final bevel is put on, and by looking at the front of the knife, you can see there is a “S” shape contour on each side of the blade. The spine starts thick, giving the knife the stiffness it needs when doing precise cut, it then tapers down to reduce the weight of the blade so it is not tiring to cut for an extensive amount of time. The blade then thickens up again at the beginning of the bevel, this allows it to have some volume so it can build the geometry that we desire.

We chose a rather strong convex grind as the primary bevel geometry, it emphasises on food release rather than low thickness behind the edge. When slicing with these knives, there will be a very positive release, the slice of food will curl sideways and fall off the blade easily without much chance of sticking to the side of the knife. The wedging issue can be mitigated by the cutting method, as the common way of cutting with Chinese cleaver is a strong push cut, the momentum of the blade can usually push through the food without getting stuck halfway.

This line offers two different profiles other than the standard 175mm and 195mm rectangular cleavers. This blade features a raised tip and a thickened edge, allowing more energy to be delivered during chopping while providing the necessary strength to cut through small bones, such as fish bones, without chipping. The “Tall Santoku” is more useful in butchery, having a more clearly defined tip allows it to perform precise dissection and carving in these scenarios.

This Blue 2 line is our answer to the demand of a great workhorse chinese cleaver, it combines many features we believe are useful and it also offers many different profiles to fit the needs of different users. I have to mention they are not the most beautiful knives you can find because at the end of the day, they are still hand forged products. We opt for performance and value instead of beauty, so you can get these very organic looking, great performing knives at a very reasonable price.

Pros Cons
  • Great for professionals
  • Workhorse grind
  • Budget friendly
  • Fit and finish can be improved
  • Prone to rust
Care Instruction
  1. Don't cut hard things! Japanese knives are brittle so bone hacking is a NO NO!
  2. Wash with neutral detergent after use, and wipe dry;
  3. Please don't wash knife with dishwasher, it will damage the wood handle;
  4. Be careful not to leave the knife close to a heat source for a long time;
  5. It is a lot more dangerous to cut with a blunt knife than a sharp knife!
  6. It is best to sharpen a Japanese knife regularly on a waterstone.
  7. Oil the (carbon) knife if storing for an extended period of time to prevent rust.

Knives and Stones (K&S)

Established in 2014 and based in Sydney, Australia, Knives and Stones (K&S) is an Australian kitchen knife retailer with international customers. Through close relationships with Japanese blacksmiths, K&S directly imports Japanese kitchen knives.

Founder James Zhang’s Chinese heritage also brings a unique dimension to the business: collaborating with Chinese craftsmen to forge high-performance cleavers using Japanese steels—what James proudly calls “the real deal.”

Read more

Founded in 2014 and headquartered in Sydney, Australia, Knives and Stones (K&S) has grown from a small project into a kitchen knife retailer with customers in Australia, the USA, and China. What started as a small business dedicated to sourcing Japanese blades now serves chefs, collectors, and home enthusiasts across three countries.

At the heart of K&S is a personal connection with Japanese blacksmiths. Over the years, we have built relationships with established and new blacksmiths, allowing us to import their knives directly. This not only keeps each knife's origin clear and its craftsmanship intact, but also delivers outstanding value to our customers by removing unnecessary layers between the maker and the end user. K&S stocks both well-known and smaller Japanese knife brands.

Our international outlook is also shaped by founder James Zhang’s Chinese heritage. With a vision to bridge traditions, James has introduced Japanese steel to skilled Chinese makers to create a series of Japanese-steel cleavers. These blades, which James calls “the real deal”, combine Japanese steel with Chinese cooking use.

With physical presence and distribution networks in Australia, the USA, and China, Knives and Stones brings Japanese kitchen knives to customers in those three countries. Whether you’re a professional chef seeking a reliable workhorse, a collector chasing rare masterpieces, or a home cook ready to elevate your craft, K&S is committed to delivering tools that inspire confidence and creativity in the kitchen.

Est. 2014
Website knivesandstones.com.au Instagram @knivesandstones Read more about Knives and Stones (K&S)

Knife details

Frequently asked questions

Can a chuka cleaver cut bone?

It depends on the blade thickness. A knife maker's guide sorts the chuka cleaver (中華包丁) into three thicknesses, each suited to different foods.

The thin kind (薄刃), the lightest, is for the everyday foods a supermarket sells; the medium-thick kind (中厚刃) can also cut hard foods such as bone-in chicken and fish bones; and the thick kind (厚刃), the heaviest and meant for experienced users, suits bone-in block meat and frozen food. Check the thickness of your blade before you cut any bone.

Will a carbon steel knife rust, and how do I look after it?

Yes, carbon steels such as Aogami (Blue) and Shirogami (White) react with food, moisture, and acids, so left wet they can spot or rust. With normal use they develop a grey, blue and brown patina, and that patina is expected on a carbon knife rather than damage.

Aogami has only a little chromium, far below what a stainless steel needs, so water left sitting on the blade will spot it. A patina is a stable oxide layer that slows rust down; orange or red specks are rust.

Care is simple once it becomes habit:

  • Wipe the blade as you go, especially after onion, citrus or tomato.
  • When you finish, wash it in warm water with a little soap and dry it straight away with a towel. Don't let it air dry or leave it in the sink or the dish rack, and never put it in the dishwasher.
  • Store it dry: on a magnetic strip, in a saya or in a block in a dry spot.
  • If it's going to sit unused for a while, wipe on a thin film of food-safe mineral oil before storing it.

If you do find rust, lift light orange spots with a rust eraser and a little water, then dry and oil the blade. We stock the CKK and Naniwa rust erasers, and the Koyo Sunlite Polishing Paste (Blue for Steel) lifts light surface rust or refreshes a finish. Rust on the edge itself comes off the next time you sharpen. Deep pitting needs a professional sharpener. Avoid steel wool and harsh scouring on a polished or kurouchi finish, because they scratch it.

On a stainless-clad knife only the thin line of carbon steel along the edge can rust; the cladding stays clean. A carbon-clad or honyaki blade can rust over its whole face and needs the same care all over.

Carbon steel rewards this small amount of attention with a keener edge and easier sharpening than most stainless.

What is the difference between Blue 2 and White 2 steel?

Proterial lists 1.05 to 1.15% carbon for both steels; its Blue 2 table lists 0.20 to 0.50% chromium and 1.00 to 1.50% tungsten, while its White 2 table lists neither.

Proterial describes White 2 as a carbon steel with minimum impurities and high hardness, and Blue 2 as an alloy steel with tungsten and chromium to improve heat-treatment properties and wear resistance, with a hardening hardness of over 60 HRC for both. Neither steel is close to the JSSA's 10.5% minimum for stainless.

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