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ZWILLING Four Star 5.5-inch flexible boning knife, forged German steel, black polypropylene handle

ZWILLING J.A. HENCKELS

ZWILLING J.A. HENCKELS 31086-143 5.5-inch Flexible Boning Knife

SKU CH-K66X-MWNVJ MPN 31086-143

A flexible 5.5-inch boning knife forged from a single piece of German high-carbon steel with an ice-hardened FRIODUR blade and ergonomic polypropylene handle

  • German-forged single-piece steel for lasting strength
  • Ice-hardened FRIODUR blade starts sharper and holds its edge longer
  • High-carbon NO STAIN steel resists staining and chipping
  • Ergonomic polypropylene handle bonded seamlessly for comfort and control
  • Bolster design balances the knife and guards fingers safely

Purpose and user

This flexible boning knife is designed for precise meat and fish preparation where a thin, manoeuvrable blade is essential. Home cooks and professional chefs who regularly debone poultry, trim fat or fillet fish will appreciate the 5.5-inch length and supple blade profile.

Steel performance limits

The special formula high carbon NO STAIN steel is ice-hardened through the FRIODUR process, giving a harder edge that resists staining and chipping while holding sharpness longer. The blade is not suited to heavy chopping, frozen foods or cutting through bone, as the flexible geometry prioritises finesse over impact resistance.

Build and daily use

SIGMAFORGE construction forges the knife from a single piece of solid steel, creating a seamless bolster-to-handle transition that improves balance and acts as a finger guard. The ergonomic polypropylene handle is permanently bonded for a hygienic, gap-free joint, and the German manufacture ensures consistent quality for everyday kitchen work.

Highlights

  • German-forged single-piece steel for lasting strength
  • Ice-hardened FRIODUR blade starts sharper and holds its edge longer
  • High-carbon NO STAIN steel resists staining and chipping
  • Ergonomic polypropylene handle bonded seamlessly for comfort and control
  • Bolster design balances the knife and guards fingers safely

Specifications

BrandZWILLING
Model31086-143

Questions about this item

Should I pick the 5.5-inch or a longer boning knife?

The 5.5-inch blade offers tighter control around joints and small cuts; choose a longer blade only if you regularly break down larger primal pieces.

What does the 5.5-inch blade length mean when I am working?

It gives a nimble, flexible edge that follows bone contours closely, making precise trimming and filleting easier than with a rigid, longer knife.

How does the SIGMAFORGE single-piece forging affect the knife?

Forging from one piece of steel creates a seamless bolster-to-handle transition, giving balanced weight, a secure finger guard, and no joint to loosen over time.

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