The ZWILLING PRO state-of-the-art grinding technology is employed to produce a wedge-shaped blade offering optimum geometry and stability. They are hand finished by the two-stage V-Edge, for sharpness that lasts. The consistent yet innovative combination of tradition and cutting-edge technology is also evident in the blade. ZWILLING J.A. HENCKELS' specially forged SIGMAFORGE blades are FRIODUR ice-hardened for extra strength and flexibility. The redesigned transition from handle to blade has a lot to do with that, the two elements curving seamlessly into each other, with nothing to disturb the hand or disrupt the cutting process. In a knife, harmony like this leads to functional perfection.