X-Acto Z-Series #1 Knife

X-Acto's goal with the Z Series was to design, develop, and manufacture a No. 11 blade that is absolutely "best in class." They succeeded. These blades are seven to 10 times sharper than standard X-Acto blades.
XActos goal with the ZSeries was to design develop and manufacture a No 11 blade that is absolutely best in class They succeeded Early consumer response has been positive with users saying they noticed a significant improvement in sharpness tip durability and cutting performance particularly in production and assembly line applications A Zirconium Nitride coating on the cutting edge of ZSeries blades adds significant strength to the blade particularly the tip for long life These blades are seven to 10 times sharper than standard XActo blades

X-acto Z series comparison

X-ACTO AXENT #1 Craft Knife W/Cap – The Glitter Grind LLC

X-Acto X3000 Knife - Size 1, Hobby Lobby

X-Acto Knives

X-ACTO Z Series Light-Weight Replacement Blade No 11 4-7/8 in L Stainless Steel Blade Gold Hue Pack of 5 : : Stationery & Office Products

Personalized X-ACTO 1 Precision Cutting Knife Custom Engraved Craft Knive Valentines Gifts for Him Dad Men Carpenter Architect Fine Point

X-ACTO X5285 Basic Knife Set (XW5282E) : : Tools & Home Improvement

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. X-Acto's sharpest and most durable blade. Atomically sharpened and zirconium nitride-coated. Stays sharper longer than standard No. 11 blades.

X-Acto No.11 Blades - 100 pack

X-Acto XZ611 Z-Series Knife No.11 Fine Point Blades