Crafted from carbon steel, these Excel Straight Edge #2 Blades offer a sharp, dependable edge for trimming and cutting a variety of thicker materials. Compatible with medium-duty to heavy-duty craft knives, they are ideal for working with matte board, linoleum, foam core, plastic, cardboard, plaster cast, cork, metal, stone, wood, balsa wood, rubber, wax, clay, and more. Specifically made to fit with models K2/K5/K6, they feature dimensions of 1.880 in length, 0.400 in height, 1.100 in edge, and 0.345 in sharpness with a 0.025 thickness. These USA-made blades bring convenience and precision to your projects.