This blade is my personal favorite when it comes to durability, sharpness, and precision. This value pack is the best I've found, and I've probably only purchased 2 in the past 6 years!
X-ACTO Z Series No. 11 replacement blades are atomically sharpened and zirconium nitride-coated. They stay sharp seven times longer than standard blades. They easily cut paper, plastic, balsa, thin metal, cloth, film and acetate. Blades are designed for use in No. 1 Precision Knife and Type A Handle X-Acto knives.
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