xx#2 Standard Blades B2 100pcsEXC 22602 Excel #2 Standard Blades B2 (100 Pieces) Made from carbon steel These Sharp Straight Edge Blades are the perfect blade for cutting and trimming thicker materials. This versatile replacement blade fits with all standard medium to heavy duty craft knives including the Xacto Knife. Used with: matte board, linoleum, foam core, plastic, cardboard, plaster cast, cork, metal, stone, wood, balsa wood, rubber, wax, clay and more. Used for: trimming,