For over 80 years, Case enthusiasts have been captivated by the Yellow CS knives, a collection that has only grown to include more models, all featuring the highly sought-after CS blades. Pen knives, known for their two blades on opposing ends, range in size from 2 5/8 to 3 3/8 inches closed, allowing you to choose the one that best fits your needs. The Clip blade, located at the pocket end, is versatile and commonly used for detail work, while the Pen blade, positioned at the cap end, excels at small tasks like opening envelopes and boxes. These knives are equipped with high carbon steel blades, renowned for their tensile strength, wear resistance and toughness. Many prefer this steel for its excellent edge retention and ease of sharpening. To keep the blades in top condition, applying a thin coat of oil after each use will preserve their original finish.

Polished carbon steel blades feature a refined finish that enhances both aesthetics and cutting performance
Versatile clip and pen blades include a clip blade for precision-cuts and a pen blade for detailed work
Classic smooth yellow synthetic handle with the case oval shield offers a traditional look with modern durability
Compact and lightweight design measures just 3.38 inches when closed and weighs only 1.0 oz, making it perfect for everyday carry

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