The Heavy-Duty Mini Utility Knife

Hand-forged in the historic kilns of Kyoto by master blacksmith Kyokokaji Shokei, this 105mm Petty is the definitive "compact workhorse." While standard paring knives are designed for light peeling, this blade is built for power. With an extraordinary 25mm blade height and a 3mm-thick spine, it provides the knuckle clearance and lateral stability needed for intensive board work, functioning as a miniature chef's knife for small-scale tasks.

Forged from Shirogami #2 (White Steel), the core offers a surgical "bite" that is world-renowned among professional chefs for its ease of sharpening. The traditional Kurouchi (Black-forged) finish reduces food drag and provides a rustic, non-stick surface that embodies the artisan heritage of Kyoto.

Artisan Fujimaki Handle

The Full-Tang construction ensures this knife is balanced for high-pressure environments, pulling the center of gravity into the palm for maximum control. The handle is meticulously wrapped in Fujimaki (Japanese rattan), a traditional technique that provides a natural, high-friction grip that remains secure even when your hands are wet or oily.

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Technical Specifications

Specification	Details	Chef’s Note
Blacksmith	Kyokokaji Shokei	Authentic Kyoto-forged craftsmanship
Blade Steel	Shirogami #2 (White Steel)	High-purity carbon for a "scary sharp" toothy edge
HRC (Hardness)	61-63	Professional grade edge retention
Blade Construction	Kurouchi Iron Clad (San Mai)	Black-forged finish; reactive carbon core
Blade Length	105 mm (4.1")	The ideal "Utility" size for prep and trimming
Blade Width (Height)	25 mm	Extra Wide: Unrivaled knuckle clearance for board work
Blade Thickness	3 mm	Sturdy Build: Exceptional spine stiffness and power
Total Length	235 mm	Substantial reach for a small-format knife
Weight	94 g	Balanced heft; feels solid and purposeful
Tang Style	Full-Tang	Superior Durability: Steel runs the full handle length
Handle Material	Fujimaki (Rattan Wrap)	Naturally slip-resistant; iconic Kyoto aesthetic
Handle Length	95 mm	Ergonomic grip designed for leverage and control
Handle Thickness	20 mm	Secure, confident hold for various hand sizes
Edge Type	Double Bevel (50/50)	Ambidextrous; performs for all users

 

Universal Handling: Balanced & Ambidextrous

This Petty is ground with a symmetrical 50/50 double-bevel edge, performing identically for both right-handed and left-handed users. The Full-Tang design provides a solid counter-balance to the 3mm-thick blade, making it feel incredibly nimble. The Fujimaki handle prevents the "rolling" common with polished handles, ensuring precision during delicate trimming tasks.

Authorized Kyokokaji Dealer

When you purchase from Hasu-Seizo, you are guaranteed an authentic product sourced directly from Kyokokaji Shokei in Kyoto, Japan. Every blade is hand-inspected at our Seattle, WA warehouse to ensure the Fujimaki wrap and edge geometry meet our exacting standards.

Sharpening & Maintenance

White Steel #2 is arguably the most rewarding steel to sharpen. It accepts a razor-sharp edge with minimal effort on whetstones.

• Maintenance: We recommend a #1000 Grit Whetstone for regular edge alignment.

• Refinement: A #6000 Grit Whetstone will unlock a mirror-finished edge that excels at surgical-grade protein trimming.

Performance & Care

• Best For: Medium-scale prep (shallots, small citrus, chilies), trimming proteins, and light board work.

• Care: Hand-wash only and dry immediately. High-carbon steel will rust if left wet.

• Safety: Avoid bones or frozen foods. The 61-63 HRC edge is optimized for sharpness and should never be used for prying.

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Frequently Asked Questions

Q: Is a 105mm Petty too big for paring? A: Not at all. While larger than a standard 90mm paring knife, the 105mm length offers more versatility for board work while remaining agile enough for in-hand peeling.

Q: Will the carbon steel blade change color? A: Yes. Acidic foods will cause the blade to develop a "patina" (shades of grey/blue). This is a normal, healthy reaction that helps protect the steel from deep rust.

Q: Does the rattan handle require special oil? A: No, your natural hand oils will help keep the rattan supple. If it ever feels exceptionally dry after years of use, a tiny amount of food-safe mineral oil is all that's needed.