Where do you buy replacements for the #1 knife blade? Searched Amazon and internet.

Thank you for your question. The handle series is called a #1 however the blades that used are a #11. You can locate these exact replacement blades under ASIN #B007VERA1K (5pk) or #B005JDF28S (100pk).

Will the tip break if used for lifting a push-on back of a wristwatch to replace watch battery?Thank you

The tip will definitely break if you try to pry the back off of a watch.

what is zirconium nitride coating does it decompose plastic? (such as gunpla model kits)

Zirconium nitride is an inert ceramic material. Its job is to make the cutting edge harder than the metal underneath would be alone, which will help keep the blade sharp for longer. The same coating is pretty common on things like drill bits. Your model parts should be safe!

does zirconium nitride coating do harm or decompose plastics? i was going to used this to cut nub marks for plastic model kits?

We use these for lots of plastic mold work at our shop and have never had a problem with any of our plastic molds.

X-Acto Precision Utility Knife, Metal, Silver, 9.0 inches, Aluminum Handle, Z-Series #1, Includes Safety Cap

Product ID: 256826760

Details

Brand
X-Acto
Colour
Silver
Handle material
Aluminum
Item length
25 Millimeters
Material
Aluminum

🔪Zirconium nitride blade - 5x stronger

⚙️Lightweight aluminum handle - easy maneuver

🛡️Safety cap included - secure storage

R617

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Details

Brand
X-Acto
Colour
Silver
Handle material
Aluminum

Description

🔪 Cut sharper, last longer, create smarter.

EFFORTLESS CONTROL - Lightweight aluminum handle designed for smooth, fatigue-free handling during extended creative sessions.
SAFE READY TO GO - Includes a protective safety cap for worry-free storage and on-the-go portability—never compromise safety.
DURABILITY THAT OUTLASTS - Zirconium nitride coating keeps your blade 7-10x sharper longer—cutting edge performance that won’t quit.
VERSATILE MATERIAL MASTERY - Seamlessly slice through paper, fabric, thin metal, plastic, and more—your all-in-one precision tool.
UNMATCHED PRECISION CUTTING - Experience razor-sharp accuracy with the #11 fine point blade, engineered for flawless detail work.

The X-Acto Precision Utility Knife features a zirconium nitride-coated #11 fine point blade that is 5 times stronger and stays sharp 7-10 times longer than standard blades. Its lightweight aluminum handle ensures easy maneuverability for precise cuts across paper, fabric, thin metal, and plastic. Designed for professionals and creatives alike, it includes a safety cap for secure storage and portability, making it the ultimate tool for detailed craftsmanship.

Specifications

Blade material	Zirconia nitride
Brand	X-Acto
Colour	Silver
Handle material	Aluminum
Item length	25 Millimeters
Material	Aluminum

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