Zero Tolerance is a sub-brand of Kershaw, producing premium tactical and EDC knives engineered for demanding users. Known for obsessive attention to detail, innovative lock mechanisms like their signature framelock and button lock designs, and collaboration with respected custom knife makers, Zero Tolerance knives span from high-end EDC folders to specialized fixed blades. Their lineup emphasizes refined materials - titanium scales, quality stainless and tool steels, G10 handles - and precision manufacturing. Zero Tolerance knives are built for serious use and serious collectors, with designs that balance ergonomics, durability, and aesthetics. If you want a production knife that feels like a custom piece, Zero Tolerance delivers the engineering and fit-and-finish to justify the investment. Their models tend to hold their value and develop a loyal following among knife enthusiasts who appreciate the brand's commitment to incremental innovation and uncompromising build quality.