Pocket Worn old red bone corn cob jig Peanut folding knife. Peanut knives get their name due to their small petite size, fitting discretely and conveniently in a pocket. Features mirror-polished Tru-Sharp surgical steel clip and pen blades. The clip blade is commonly used as a multi-purpose blade and preferred for detail work while the pen blade is great for light work. Made of a special high-carbon steel that helps the blades hold an edge longer than conventional steel. Limited lifetime warranty.