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5.5" Utility Knife - Zhen Series (PM8M)
Traditional Japanese Blue 2 steel with superior toughness and edge stability for professional performance.
$119.95
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Lifetime warranty
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DESCRIPTION
Nimble, responsive, and incredibly sharp. The Zhen Series 5" Utility Knife (Petty) is the perfect companion for tasks where a large chef's knife feels clumsy. Whether you are peeling fruit in-hand, trimming silverskin from tenderloins, or mincing shallots, this blade acts as an extension of your finger.
Extreme Hardness & Edge Retention
Small knives often suffer from dulling quickly due to frequent contact with the board. Not this one. Forged with a core of Japanese Blue Steel No. 2 (Aogami #2) and vacuum heat-treated to 62–64 HRC, this utility knife holds a razor edge significantly longer than standard stainless alternatives. The "San Mai" cladding protects the body of the knife, leaving the reactive carbon edge exposed for precision work.
Premium Natural Materials
The handle combines natural Maple Wood with a White Buffalo Horn ferrule. This lightweight construction allows for exceptional agility and fine control, essential for a knife of this size.
⚠ IMPORTANT: High Carbon Steel Care
Special care is required for this blade. The Blue Steel core is highly reactive.
- Water is the Enemy: Wipe dry immediately. Do not leave on a wet cutting board.
- Acidic Foods: When cutting citrus or tomatoes, wipe the blade frequently during use to prevent corrosion.
- Patina: A dark patina will form on the edge. This is normal and desirable.
- Ideally Suited For: Chefs and enthusiasts who understand carbon steel maintenance.
- Blade Steel: 3-Layer Japanese Blue Steel No. 2 (Aogami #2)
- Hardness: 62–64 HRC (Vacuum Heat Treated & Deep Freeze)
- Handle: Maple Wood + White Buffalo Horn
- Blade Profile: 5-inch Utility (Petty)
- Use: Peeling, trimming, small vegetable prep, garnish work.
- Series: Zhen (PM8M)
- Model: PM8M-WY
Complete Your Collection
The perfect sidearm to the PM8M 7" Santoku or 8.5" Bunka.
READY TO GIFT
All our knives arrive in a beautiful, premium gift box that’s ready to impress. (Whether it's for a very lucky cook, or just for you.)
THE NERDY BITS
Steel Type: 3 Layers Blue 2 Composite Steel
Hardness (HRC): 62-64 HRC
Handle: Maple Wood + White Buffalo Horn
Heat Treatment: Vacuum Heat Treatment and Deep Freeze
What that means: Traditional Japanese steel with superior toughness and edge stability.
Blue Steel No. 2 — The purist's choice
Aogami #2 (Blue Steel No. 2) is a legendary Japanese carbon steel, revered by bladesmiths for its ability to take the keenest edge of any kitchen steel. The 3-layer composite construction wraps the reactive carbon core in stainless cladding for protection — but make no mistake, this is a knife that demands respect. It will rust if left wet. That's the trade-off for the finest edge available.
62-64 HRC
Superior Hardness
Second only to the X05Z in our range. This hardness allows an incredibly fine, keen edge that holds through extended prep sessions.
Blue Steel No. 2
Japanese Carbon Legend
Aogami #2 has been the steel of choice for Japanese blacksmiths for generations. It takes an edge that stainless steels simply cannot match.
Reactive Steel
Requires Active Care
This is non-stainless steel. It will develop a patina (normal and desirable) and will rust if left wet. Dry immediately after every use.THE SHARPEST EDGE. THE HIGHEST STANDARD.
Carbon Steel for the Dedicated Cook
Blue Steel No. 2 takes an edge that stainless steels simply cannot match. The grain structure is so fine, so tight, that the cutting edge can be honed to a level of sharpness that changes how food feels under your blade. This is the knife for cooks who understand that the best tools demand the most care.Handle Design
Maple Wood &
White Buffalo Horn
The PM8M handle honours Japanese tradition with light maple wood and white buffalo horn in an octagonal shape. Maple is a tight-grained hardwood that's lightweight yet strong — the perfect counterbalance to the dense carbon steel blade. The octagonal cross-section gives you intuitive control over the blade's angle, essential for the precision cutting that Blue Steel enables.
Why Choose
Carbon Steel
The PM8M Zhen Series exists for one reason: to offer the finest cutting edge possible. If you're a cook who hand-washes and dries your knives immediately, who appreciates the ritual of maintaining a blade, and who values sharpness above all else — this is your knife. There's nothing else like it in the Xinzuo range.
More Knives From the PM8M Zhen Series
- 7.5" Santoku Knife - Zhen Series (PM8M)
- 5.5" Utility Knife - Zhen Series (PM8M)
- 8.5" Bunka Knife - Zhen Series (PM8M)
Care & Maintenance
A premium blade is built to last decades when looked after. Here's how to keep yours performing like the day it arrived.
How do I clean and store my knife?
Hand-wash with warm water and mild detergent immediately after use, then dry thoroughly with a soft cloth. Never leave the blade wet, soaking in the sink, or in contact with acidic foods (lemon, tomato) for long periods.
Store in a knife block, magnetic strip, or protective sheath — drawer storage where the edge can knock against other utensils is the fastest way to dull the blade.
Can I put my knife in the dishwasher?
No. The combination of heat, harsh detergents and metal-on-metal contact will dull the edge, damage the handle, and risk corrosion to the blade. Hand washing takes ten seconds and protects an investment built to last decades.
How often should I sharpen this knife?
For home use, hone the edge weekly with a fine ceramic rod and sharpen on a whetstone every 6 to 12 months — sooner if you cook daily. Our high-carbon Damascus steel holds its edge significantly longer than typical kitchen steel.
Avoid pull-through sharpeners — they grind away too much steel and leave an uneven bevel. A 1000/3000 or 1000/6000 grit whetstone is the right tool. See our whetstone sharpening guide for the technique.
What if I damage the blade or handle?
Every Xinzuo knife is covered by a lifetime manufacturing warranty against defects in steel and craftsmanship. Accidental damage from misuse (hitting bone, prying, dishwasher) isn't covered, but we offer a paid re-handle and re-grind service for the life of the knife — get in touch via our contact page with photos and we'll talk you through it.
FAQs
What is 14Cr14MoVNb powder steel?
14Cr14MoVNb is a powder metallurgy steel with high chromium (14%), molybdenum, vanadium, and niobium content. The powder steel process creates an extremely fine, uniform grain structure that allows the blade to be hardened to 62-64 HRC while remaining tough enough for kitchen use. It holds an edge 2-3 times longer than conventional VG10 and is the same class of steel used in knives costing $400+.
How hard is the Lan Series?
The Lan Series is hardened to 62-64 HRC through vacuum heat treatment. This is significantly harder than German steels (56-58 HRC) and harder than VG10 (60-61 HRC). The practical result is excellent edge retention. Most home cooks can go 6-12 months between sharpenings with regular honing. See our powder steel guide for detailed performance data.
Is the Lan Series harder to maintain than other series?
Harder steel does require a bit more care. Use a fine-grit whetstone (3000+ grit) rather than a coarse stone, and avoid ceramic honing rods which can chip the edge. A leather strop is ideal for daily maintenance. The trade-off is worth it: you'll spend far less total time sharpening because the edge lasts so much longer between sessions.
What handle does the Lan Series have?
The Lan Series features a hand-finished olive wood handle. Each piece of olive wood has unique grain patterns, making every knife one of a kind. Olive wood is naturally moisture-resistant and develops a rich patina with use. The ergonomic Western-style shape suits both pinch and handle grips.
Who is the Lan Series best for?
The Lan Series is built for cooks who prioritise edge performance above all else. If you find yourself sharpening too often, or if you want the closest thing to a professional-grade knife at a fraction of the price, the Lan Series delivers. It's also excellent for cooks who do a lot of precision work: the harder steel takes a keener edge for finer cuts.






