Miyabi Black Sujihiki Slicing Knife 9.5-inch

The Hardest Edge on Earth, Engineered Without Brittleness

While a 67 Rockwell hardness typically suggests a fragile blade, the Miyabi Black Sujihiki is a metallurgical anomaly—delivering extreme durability and edge retention that survives high-volume professional service. This is not just another Japanese slicer; it is the pinnacle of the Miyabi lineup, designed for the chef who requires a laser-like edge that doesn't chip at the first sign of resistance.

At the core of this 9.5-inch (240mm) Sujihiki is MicroCarbide MCD67 (ZDP-189) powder steel. In traditional metallurgy, pushing steel to 67 HRC often results in a 'glass-like' brittleness. However, the Miyabi Black defies this convention. Through a proprietary ice-hardening process, the molecular structure is refined to be hard and durable. This allows the knife to maintain its 9.5 to 12-degree Honbazuke-honed edge through hundreds of slices of dense protein or delicate fatty tuna without the rolls or micro-chips common in lesser high-carbon steels.

The aesthetic is as functional as it is striking. The blade is encased in 132 layers of Flower Damascus steel. This cladding isn't just for show—it provides a structural buffer for the high-carbon core, enhancing the blade's lateral strength and ensuring smooth food release. The traditional D-shaped handle, crafted from moisture-resistant Black Maple Burl, sits naturally in the hand, offering the tactile feedback necessary for precision slicing. For the professional executive chef or the dedicated sushi artisan, the Miyabi Black Sujihiki represents the ultimate balance of extreme hardness and everyday reliability.