CRKT P.S.D. (Particle. Separation. Device.) Folding Knife Assisted Opening 3 5/8" Blade Carbon Fiber

The CRKT P.S.D. (Particle Separation Device) Folding Knife with Assisted Opening and 3 5/8" Carbon Fiber blade is purpose-built for operators who demand rapid deployment and cutting efficiency in a compact everyday carry platform. The full recurve blade geometry combined with a highly efficient double grind design maximizes slicing performance across varied cutting tasks, from tactical utility to general field work. Assisted opening via flipper mechanism deploys the blade in a fraction of a second, critical when speed matters in operational environments.

The IKBS ball bearing pivot delivers smooth, consistent blade deployment with minimal friction—a hallmark of CRKT's engineering. High carbon stainless steel blade stock resists corrosion while maintaining edge retention through extended field use. The 3 5/8" blade length provides substantial cutting surface without exceeding practical EDC limits, and the recurved profile concentrates cutting force near the tip for enhanced piercing and slicing capability. Carbon fiber handle construction keeps overall weight to just 0.35 lbs, reducing fatigue during extended operations while maintaining structural rigidity.

This knife is engineered for law enforcement, military personnel, first responders, and serious outdoorsmen who require a dependable blade ready for immediate deployment. The assisted opening mechanism and blade geometry make it effective for rapid utility cuts, rope severing, and tactical scenarios where hesitation isn't an option. The compact profile (5.65" closed) fits standard pocket carry without printing, while the efficient design means it earns carry weight through genuine cutting performance rather than redundancy.

Columbia River Knife & Tool has established credibility in the tactical and professional markets by delivering tools that perform in high-stress environments. The P.S.D. represents the company's commitment to blade efficiency through refined geometry and materials rather than unnecessary bulk—a philosophy that resonates with experienced operators who understand the relationship between design and field reliability.