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5.5" Utility Knife - Uliassi Series (X03)
The X03 series — Xinzuo's collaboration with three-Michelin-star chef Mauro Uliassi. 73-layer Damascus over a 14Cr14MoVNb powder-steel core, hardened to 62 HRC. Includes a matching wooden sheath.
$169.95
or 4 interest-free payments of $42.49 with
30-day returns
Free shipping over $100
Lifetime warranty
FAST SHIPPING
IN STOCK
15° Per Side
Razor Sharp
62±2 HRC
Powder Steel Core
73 Layers
Forged Damascus
DESCRIPTION
Reach for this when the chef knife is too much blade for the job. Segmenting a grapefruit, cutting down a block of cheese, slicing through a punnet of cherry tomatoes in two passes, trimming a chicken breast into even portions before it goes in the pan. The 5.5-inch utility sits between a standard 5-inch petty and a 6-inch slicer, which gives it just enough length to be genuinely useful across a wider range of tasks than either end of that bracket.
The Daily Go-Between
A 5.5-inch blade is long enough to halve a lemon cleanly and short enough to work comfortably on smaller produce without the nose of the blade overhanging the board. You'll find yourself reaching for it on the jobs where the 4-inch paring knife feels too short and the chef knife feels like overkill. It's the knife that doesn't get put away at the end of a session because you keep picking it back up.
73-Layer Damascus, Powder Steel Core
The core is 14Cr14MoVNb powder steel at 62 HRC. It takes a fine edge and stays there through repetitive slicing work on mid-size produce where you'd typically reach for this blade. Wrapped in 73 layers of Damascus and fitted with a rosewood handle. Each knife ships with a wooden sheath, which is worth keeping out on the bench rather than storing it loose in a drawer.
Specifications
- Blade Steel: 73-layer Damascus with 14Cr14MoVNb powder steel core
- Hardness: 62 HRC
- Blade Profile: 5.5-inch utility knife
- Handle: Rosewood
- Use: Segmenting citrus, slicing cheese, trimming chicken portions, mid-size produce where a chef knife is too long.
- Series: Uliassi Series (X03)
- Model: X03-WY
Complete Your Set
Pair it with the Uliassi Series 4" Paring Knife (X03-SG) for the fine in-hand work, and the 8.5" Chef Knife (X03-8QF) when you're moving into heavier prep work on the board.
READY TO GIFT
Arrives in a premium gift box engraved Xinzuo for Mauro Uliassi, with a matching wooden sheath. Ready to give — or to keep.
THE NERDY BITS
Blade: 73-layer Damascus, 14Cr14MoVNb powder-steel core
Hardness: 62±2 HRC
Edge: 15° per side, double bevel
Blade length: ~5"
Heat treatment: Vacuum + deep-freeze cryo
Handle: Rosewood with brass mosaic pin
Made: By hand in Yangjiang, China
Includes: Matching wooden sheath
The X03 Series — Xinzuo × Mauro Uliassi
Designed for a three-Michelin-star kitchen
A collaboration with Mauro Uliassi — the Italian chef whose restaurant held three Michelin stars from 2019 to 2025 — co-designed with Steve Cheng. The wavy Damascus is forged, not laser-etched. Made by hand in Yangjiang, China — the city of knives, with roughly 1,400 years of blade-making heritage.
Add to cart — $169.95
In stock. Ships from Australia. Hand-wash only.
The in-betweener
Too big for a paring knife. Too small for a chef's.
The utility knife fills the gap — sandwiches, tomatoes, smaller fruit and veg, trimming and portioning. A 5-inch blade with a fine 15° edge handles the everyday jobs that don't need a full chef's knife.
- ~2.1 mm spine
- 15° per side
- 62±2 HRC
73-layer Damascus
73 layers. One edge that lasts.
A 14Cr14MoVNb powder-steel core — the Chinese equivalent of SG2/R2 — hardened to 62±2 HRC with vacuum heat treatment and a deep-freeze cryo cycle, then folded into 73 layers of Damascus. A true double bevel, forged, not laser-etched.
Specification
The numbers.
TypeUtility
Blade length~5"
Spine~2.1 mm
Edge15°/side double bevel
Core steel14Cr14MoVNb powder
Construction73-layer Damascus
Hardness62±2 HRC
HandleRosewood · brass mosaic pin
TangHidden
Hand-wash only — not dishwasher safe.
Rosewood · Brass
Built for real prep.
A rosewood handle with a brass mosaic pin, on a hidden-tang Damascus blade — balanced for control through a long prep session.
The difference
Why this knife.
Utility knife
- Right size for everyday small jobs
- Nimble where a chef's knife is clumsy
- Fine edge for tomatoes and fruit
Reaching for the chef's knife
- Bigger than most quick jobs need
- Less control on small produce
In the box
Everything it comes with.
- The X03 Utility Knife, 5.5"
- A matching wooden saya (sheath)
- Premium gift box engraved Xinzuo for Mauro Uliassi, with the Italian flag
Arrives ready to give. Optional engraving available above.
X03 Utility Knife · 5.5"
Ready when you are.
73-layer Damascus · 62±2 HRC · 15° edge · matching saya · gift box.
Add to cart — $169.95- 30-day returns
- Free shipping over $100
- Lifetime warranty
Care & questions
How do I clean and care for it?
Hand-wash with warm soapy water and dry it straight away. Not dishwasher safe. Store it in the included wooden saya or on a magnetic strip to protect the edge.
Will the edge chip?
The 14Cr14MoVNb powder-steel core at 62±2 HRC holds a fine edge. Like any hard Japanese-style blade, keep it to food — avoid bone, frozen food and twisting.
Is it made in Japan?
No. It's hand-made in Yangjiang, China — the traditional Chinese city of knives — using a 14Cr14MoVNb powder steel equivalent to SG2/R2, as part of the Xinzuo × Mauro Uliassi collaboration.
What is a utility knife for?
The everyday in-between jobs — tomatoes, sandwiches, smaller fruit and veg, trimming and portioning — where a chef's knife is too big and a paring knife too small.
Does it include a sheath?
Yes — a matching wooden saya is included in the gift box.
Can I have it engraved?
Yes — choose the engraving option in the buy box above before adding to cart.
From the journal
Guides to help you get the most from your knife
