6" Bunka Knife (ACUTO440)

Blue

$99.00

6" Bunka Knife (ACUTO440)

28 Reviews

6" Bunka Knife (ACUTO440)

$99.00

A Japanese-style chef’s knife with a paring tip. Compact, versatile, and built for everyday prep with extra precision.

Color: Blue

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60-Day Test Drive

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Lifetime Warranty Against Defects

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Free Returns

AICHI ACUTO440 Japanese steel for exceptional sharpness and edge retention
Lab-tested rust resistance proven to withstand 50 days submerged in water and up to 100 dishwasher cycles.
6” straight-belly blade for compact, versatile prep and clean, controlled cuts
Triangle tip for precise tasks like mincing and trimming
Ergonomic rounded spine and bolster for a more comfortable pinch grip

Rust-Proof

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ACUTO440 Steel

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Up & Down Chop

Hand wash
Dry immediately after use
Sharpen every 4–6 months
Heads up: High-carbon knives may show discoloration after exposure to acidic foods and/or salt. This is purely cosmetic and different from rust, which is extremely rare.
Visit our Help Hub for more on how to use and care for this knife.

Let Us Handle the Sharpening

Mail-In Knife Sharpening (on any knife)
Free shipping, starting at $11 per knife.

Blade Length: 5.9 in. / 152 mm
Total Length: 11.52 in. / 293 mm
Handle Thickness: 18 mm
Weight: 0.43 lb / 194 g
Steel: AICHI ACUTO 440 (Japan)
HRC: 58±2
Grind & Edge: 50/50 Symmetrical, 14° per side
Handle Material: Polyoxymethylene
Country of Production: PRC

All Misen products come with a lifetime warranty against defects. Misen will replace any defective products. Learn more about our warranty policy here and what's covered.

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Questions?

Our ACUTO440 Knives are made with AICHI ACUTO440, an exceptionally corrosion-resistant Japanese high-carbon stainless steel. AICHI ACUTO440 is rust-proof, incredibly durable, and has excellent edge retention. What that means for you: less time cleaning and sharpening, more cooking.

All of our knives are made from high-carbon stainless steel, which is what gives them their razor-sharpness and excellent edge retention. However, our ACUTO440 Knives have a much higher chromium content (about 18%), which makes them significantly more corrosion (aka rust) resistant.

Our ACUTO440 Knives also feature a rounded spine and heel (the back of the knife where the blade meets the bolster), creating a more comfortable grip over long prep sessions.

We wanted our ACUTO440 Knives to be high-performance tools that you could still leave in the sink overnight if you needed to. That’s why our ACUTO440 Knives are made with AICHI ACUTO440, a Japanese high-carbon stainless steel that is more durable and easier to care for than other high-carbon knives, which are prone to rusting and/or chipping without proper care.

Our ACUTO440 Knives are made with AICHI ACUTO440 steel, an exceptionally corrosion-resistant Japanese high-carbon stainless steel. Our knives have been lab-certified to withstand up to 100 dishwasher cycles, as well as 50 days of being submerged in water, without showing any signs of rust.

While our ACUTO440 Knives have been lab-certified to withstand up to 100 dishwasher cycles without showing any signs of rust, we generally recommend hand washing all of your Misen knives. Because our knives are extremely sharp, when they get jostled around in the dishwasher, the blade can cut through the soft materials that make up your dishwasher racks. Dishwashing can also damage your knives if the blade edge bangs against hard objects like flatware or pots and pans during the washing cycle.

Whenever you start to notice your knife is slicing and dicing a little less crisply than usual, it’s time to sharpen. Although our ACUTO440 Knives can go long periods between sharpenings, we generally recommend getting them sharpened about twice a year for best performance. We also recommend regularly using a honing rod between sharpenings to keep your knife edge in good shape.

While our ACUTO440 Knives are rust-proof, all high-carbon knives can experience some discoloration and/or staining with prolonged exposure to acidic foods and/or salt. This is purely cosmetic and is not the same as rust. To remove discoloration, make a paste with baking soda and water. Apply the paste to the discolored spots, then use a soft microfiber cloth to gently rub the paste into the affected area to remove discoloration. Wash your knife with a soft sponge and warm soapy water, then dry right away. That's it.

Customer Reviews

5.0

Rated 5.0 out of 5 stars

Based on 28 reviews

Total 5 star reviews: 28 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0

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28 reviews

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AB
Verified Buyer
Reviewing
6 inch Bunka Knife - ACUTO440 - New
I recommend this product
Product Standouts sharp, easy-to-use, good balance, sleek design, comfortable handle
Rated 5 out of 5 stars
1 month ago
My new favorite knife.
My go to knife has been the Misen 8 inch chef knife since it was released. This knife is my new favorite. Super sharp out of the box and seems to hold an edge longer than my other knives, including the 8 inch Chef. The blade shape is fantastic. My one complaint is, I want it in an 8 inch version...
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Richard K.
Verified Buyer
Reviewing
6 inch Bunka Knife - ACUTO440 - New
I recommend this product
Rated 5 out of 5 stars
2 months ago
Bunka Knife
Very nice knife, extremely sharp!
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Jonathan S.
Verified Buyer
Reviewing
6 inch Bunka Knife - ACUTO440 - New
I recommend this product
Product Standouts sharp, easy-to-use, good balance, nice weight, comfortable handle
Rated 5 out of 5 stars
2 months ago
Great knife!
Real nice weight and balance--sharp, too. The 6-inch blade makes it easier to use than an 8-inch Chef's knife.
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Atiba D.
Verified Buyer
Reviewing
6 inch Bunka Knife - ACUTO440 - New
I recommend this product
Product Standouts sharp, good balance, premium materials, nice weight
Rated 5 out of 5 stars
2 months ago
Great
Like all Misen this is an excellent knife. Very pleased
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Alisa H.
Verified Buyer
Reviewing
6 inch Bunka Knife - ACUTO440 - New
I recommend this product
Product Standouts sharp, good balance, comfortable handle, sleek design, nice weight
Rated 5 out of 5 stars
3 months ago
Surprisingly thin!
This knife may replace my chef’s knife for most tasks!
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The 6" Bunka Knife is a Japanese-style chef's knife with a distinctive reverse-tanto tip — that pointed paring tip makes it unusually capable for detail work like scoring vegetables, breaking down herbs, or trimming proteins with accuracy that a standard chef's knife can't match. At a compact 6 inches, it's nimble enough for intricate tasks yet substantial enough to handle most everyday prep. ACUTO440 steel holds a sharp edge well and makes sharpening straightforward at home.

Because the Bunka sits between a full chef's knife and a smaller prep knife, it pairs naturally with a 5.5" Utility Knife in the same ACUTO440 steel for a well-rounded cutting kit. If you do a lot of bread or tomatoes alongside your prep, adding the 5" Serrated Knife rounds out the set without redundancy. All Misen knives carry a lifetime warranty against defects, so the Bunka is a long-term addition to your kitchen rather than a throwaway tool.