X-Acto - No. 2 Medium Weight Precision Knife - Carded - When working with heavier weight mediums, the X-ACTO No. 2 knife is the perfect tool. 5 inch aluminum handle knife works with the No. 2 blade for precision cutting of wood, board, paper, plastic, metal, cloth, film, and acetate. Xacto No. 2 knife handle also works with the No. 15, 18, 19, 22, 23, 24, 25, 26, 27, and 28 blades . Type B Knife