Misen chef's knife with stainless steel blade and black handle

5.5" Utility Knife (ACUTO440) - Black

Black
$94.00
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Misen chef's knife with stainless steel blade and black handle
  • Misen chef's knife with stainless steel blade and black handle
  • Hands cutting fresh broccoli florets on white cutting board with olive oil and salt nearby
  • Misen chef's knife on wooden charcuterie board with brie, blue cheese, pear, nuts, honey, and dried apricots
  • Misen chef's knife with black handle and stainless steel blade
  • Chef's knife close-up showing stainless steel blade, bolster, and black handle with rivets
  • 5.5" Utility Knife (ACUTO440) - Black
  • Misen chef's knife with stainless steel blade and black handle
  • Hands cutting fresh broccoli florets on white cutting board with olive oil and salt nearby
  • Misen chef's knife on wooden charcuterie board with brie, blue cheese, pear, nuts, honey, and dried apricots
  • Misen chef's knife with black handle and stainless steel blade
  • Chef's knife close-up showing stainless steel blade, bolster, and black handle with rivets
  • 5.5" Utility Knife (ACUTO440) - Black
5.5" Utility Knife (ACUTO440) - Black

1755 Reviews

5.5" Utility Knife (ACUTO440) - Black

5.5" Black Utility ACUTO Knife

$94.00

Our in-between knife for everyday prep. Perfect when a chef’s knife feels too big and a paring knife too small.

Color: Black
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60-Day Test Drive
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Lifetime Warranty Against Defects
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Free Returns
Features
  • 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.
  • 5.5” blade for versatile everyday prep
  • Ideal for slicing small produce, cheese, charcuterie, and citrus
  • Ergonomic rounded spine and bolster for a more comfortable pinch grip
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Rust-Proof
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ACUTO440 Steel
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All Chop Styles
Use & Care
  • 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
Specifications

Blade Length: 5.7 in. / 147 mm
Total Length: 10.4 in. / 265 mm
Handle Thickness: 16 mm
Blade Height: 36 mm
Weight: 0.29 lb / 136 g
Steel: AICHI ACUTO 440 (Japan)
HRC: 58±2
Grind & Edge: 50/50 Symmetrical, 14° per side
Handle Material: Polyoxymethylene
Country of Production: PRC
Warranty

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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Basically a Navy Seal

Rust-proof after 100 dishwasher cycles.

Because it’s got more chromium than standard high-carbon stainless, ACUTO440's rust resistance is a lab result, not a marketing claim.
Sliced salami and mozzarella sheet pan pizza on parchment paper being cut with a Misen chef's knife
Misen bread knife slicing dark sourdough loaf on wooden cutting board

Works Harder, Stays Sharper

Holds a razor edge through heavy prep.

At 58±2 HRC, ACUTO440 has incredible edge retention without brittleness. That means you can put off sharpening it for longer.

Questions?

What are Misen’s ACUTO440 Knives made of?

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.
What’s the difference between Misen’s ACUTO440 Knives and classic knives?

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.
How are Misen’s ACUTO440 Knives different from other high-carbon knives?

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.
What do you mean by rust-proof?

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.
Can I put Misen’s ACUTO440 Knives in the dishwasher?

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.
How often should I sharpen my knives?

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.
My blade has discoloration and/or staining. What is this?

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.

Customer Reviews

4.9
Rated 4.9 out of 5 stars
Based on 1,755 reviews
Total 5 star reviews: 1.7k Total 4 star reviews: 89 Total 3 star reviews: 14 Total 2 star reviews: 1 Total 1 star reviews: 0
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1,755 reviews
  • Lori K.
    Verified Buyer
    Reviewing
    5.5" Utility Knife (ACUTO440) - Red
    I recommend this product
    Rated 5 out of 5 stars
    4 days ago
    5.5 Utility Knife

    This is a daily go to knife. Super sharp and just the right size - for some cutting one does not need the 6.5 or 8-inch knife. Love, love this size knife.

    Was this helpful?
  • Anna L.
    Flag of United States
    Verified Buyer
    Reviewing
    5.5" Utility Knife (ACUTO440) - Blue
    I recommend this product
    Product Standouts sharp, easy-to-use, good balance, comfortable handle
    Rated 5 out of 5 stars
    1 month ago
    I use this every single day

    I have small hands and this knife is the perfect size - it’s the first knife I reach for, I use it at least once per day. I have a larger misen knife from 5 or 6 years ago that’s still in fantastic shape and sharper than it should be for how little i’ve tried to sharpen it. gives me confidence this one will last a long time as well!

    Was this helpful?
  • Jonathan C.
    Flag of United States
    Verified Buyer
    Reviewing
    5.5" Utility Knife (ACUTO440) - Blue
    I recommend this product
    Product Standouts sharp, easy-to-use, good balance
    Rated 5 out of 5 stars
    1 month ago
    Perfect size and balance

    If you're not interested in working with an 8" chef's knife, this is a wonderful alternative. At 5.5", it's great for small and detailed tasks like deboning chicken.

    Was this helpful?
  • A G. F. Y.
    Verified Buyer
    Reviewing
    5.5" Utility Knife (ACUTO440) - Blue
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    Pleasantly surprised.

    Was very happy to see the larger handle on this knife when I opened the package. From what I’ve seen with other knives the handles are not made for people with larger hands. Seems to be holding an edge quite well so far.

    Was this helpful?
  • Alex C.
    Flag of United States
    Verified Buyer
    Reviewing
    5.5" Utility Knife (ACUTO440) - Blue
    I recommend this product
    Product Standouts sharp, good balance, nice weight
    Rated 5 out of 5 stars
    1 month ago
    5.5 in utility knife

    Extremely versatile like making salad, preparing small meat dishes etc. Very light weight and balanced.

    Was this helpful?
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Why the 5.5" Black Utility ACUTO Knife Is Ideal for Everyday Prep

The 5.5" Black Utility Knife fills the gap between a full-sized chef's knife and a paring knife, making it the tool you reach for when precision matters but the job doesn't call for a big blade. Slicing citrus, portioning cheese, trimming small produce, or building a charcuterie board all feel more controlled with this size, and the rounded spine and bolster keep your pinch grip comfortable through repetitive tasks.

Because it's built from ACUTO440 steel, this knife holds an edge through heavy prep and resists rust even after prolonged exposure to moisture, so you don't need to babysit it like a traditional high-carbon blade. If you want the same durability in a smaller tool, the 3.5" paring knife is a natural companion for peeling and detail work, while the nakiri knife handles vegetable-heavy prep the utility knife isn't built for.

If you're assembling a full lineup rather than buying piece by piece, the 5-piece knife set bundles this utility knife alongside other essentials at better value. Whichever you choose, hand washing and periodic sharpening every 4-6 months will keep the edge performing as intended.