Zero Tolerance

Zero Tolerance – Brand Review & Overview

Zero Tolerance (ZT) is a premium knife brand from Kai USA, created in 2006 to deliver overbuilt, made‑in‑Oregon folders and fixed blades originally aimed at military, law‑enforcement, and first responders. Built with thick blade stock, reinforced pivots, and high-end steels like 20CV, S30V, and MagnaCut paired with G10, titanium, and carbon-fiber handles, ZT knives are known for being “proudly overbuilt” hard‑use tools that still carry well day to day.

Today, Zero Tolerance combines that hard‑use heritage with sleek, modern designs and collaborations with top custom makers, producing everything from heavy-duty work knives to slimmer, gentleman‑grade EDC folders. Whether you are looking for a compact flipper, a full‑size “pocket tank,” or a premium fixed blade, ZT emphasizes American manufacturing, tight tolerances, and hand‑sharpened edges that can stand up to real-world punishment.

As you browse this brand, think about how you intend to use your knife: a rugged field and duty tool, a high‑end everyday carry, or a collectible collaboration piece. Choosing the right Zero Tolerance model means getting a U.S.-made knife that blends premium materials, reliable strength, and refined action in a package built for years of confident hard use.