ZWILLING J.A. Henckels presents the Four Star 5.12-inch Serrated Utility Knife, an icon of culinary craft perfected over 280 years. This Sigmaforge masterpiece is precision-forged from a single piece of proprietary steel and ice-hardened using the Friodur technique for superior 57 Rockwell hardness. The serrated blade ensures exceptional edge retention while resisting stains and chips. Designed for ergonomic ease, the seamless transition from the classic bolster to the black matte handle provides a safe, balanced grip for extended use. Every detail, from the hand-finished 15-degree edge to its rust-resistant finish, brings professional performance to your kitchen.