KB Knives Zephyr Liner Lock Flame Ti/CF Folding Knife [KB431B]

Zephyr — a long pointed blade and inset composite grip

The Zephyr combines an extended cutting blade with a titanium-and-carbon-fiber handle. The composite is inset into the grip rather than replacing every metal structural element, and the internal liner provides the stated lock-release layout.

Opening and lock operation

A spring section inside the handle moves behind the blade when it opens. Moving that liner aside releases the blade for folding, so the release is accessed inside the handle rather than through a separate external button.

Steel and maintenance

M390 is a powder-metallurgy stainless steel with high wear resistance and good corrosion resistance. Its appeal is an edge that resists abrasive wear during repeated cutting; regular light maintenance helps avoid a more demanding full resharpening.

Handle construction

Titanium provides a corrosion-resistant metal structure. Anodizing and surface machining change its appearance and contact texture; they are different treatments from adding a separate grip scale or inlay.

Specifications