Materials: Q13-White Steel #2 Honyaki (Mizuyaki)

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A blade forged in risk, mastered in precision.

A White Steel #2 Honyaki is more than a knife—it is a declaration of commitment. Forged from a single piece of ultra-pure carbon steel and hardened through the demanding mizu-honyaki (water-quenching) process, it stands as one of the rarest and most challenging blades in Japanese knifemaking. Each successful piece reflects not only the blacksmith’s mastery, but also the philosophy of devotion and risk that defines true craftsmanship.

White Steel #2 is known for its purity and responsiveness. With no alloying elements, it takes an exceptionally fine edge and sharpens smoothly, offering an experience that feels honest and direct. Yet its very simplicity also makes it vulnerable—susceptible to rust and demanding careful maintenance.

Water quenching is what sets this blade apart. By plunging the steel into water at precisely the right moment, its hardness and edge retention are maximized. But the margin for error is razor-thin, and a single misstep can cause warping or cracks. This is why every successful White Steel #2 Honyaki is rare, treasured, and highly valued.

For the user, sharpening becomes a dialogue with the blade. Every stroke on the whetstone shapes performance directly, requiring steady, deliberate technique. In return, the knife rewards with effortless, precise cuts that preserve the integrity of ingredients and deliver a level of control few materials can match.

This is not a knife for everyone. It belongs in the hands of professionals or dedicated cooks who embrace sharpening as part of their craft and who value the tradition of Japanese blade-making. For those willing to match the dedication of the smith who created it, a White Steel #2 Honyaki becomes more than a tool—it becomes a lifelong partner, embodying purity, precision, and the quiet strength of mastery.

Our Story

  • Tradition of Sakai, in Your Hands

    "Where can I find a truly great knife?"
    We started KIREAJI to answer that question. While the number of skilled craftsmen is declining in Japan, many people overseas are seeking authentic blades. With that in mind, we carefully deliver each knife—bridging tradition and kitchens around the world.