Four Star knives are made of proprietary special formula steel that has been perfected for almost 300 years. Combined with ZWILLING’s signature icehardening technique, these FRIODUR blades are harder, sharper, they will not stain or chip, and they retain their sharpness longer. Precision forged from a single piece of steel, the SIGMAFORGE knives have an exceptionally sturdy, balanced, and flexible blade.
Special formula high carbon NO STAIN steel
SIGMAFORGE knife is forged from a single piece of solid steel
Ice-hardened FRIODUR blade starts sharper, stays sharper longer, and has superior resilience
Precision-honed blade and laser-controlled edge ensures ideal cutting angle for sharpness and durability
Ergonomic polypropylene handle permanently bonded for seamless accuracy and no gaps
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