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Replacement Blades

Why Use Slice® Ceramic Blades?

Slice replacement blades are made with 100 percent zirconium oxide, an advanced ceramic material that combines a number of useful features to set it apart from typical steel blades. Zirconium oxide is non-sparking, non-conductive, non-magnetic, chemically inert, and never rusts. Our blades are safe up to 1600 degrees Celsius and therefore ideal for sterilization and laboratory settings.

Another defining property of zirconium oxide is its hardness. It measures 8.2 on the Mohs hardness scale, compared with 4.5 for steel. Slice takes advantage of this property to create craft blades, utility blades, box cutter blades, and more that stay sharp 11 times longer than steel.

Steel blade manufacturers sharpen their edges aggressively—way beyond what's needed to cut materials—in order to compensate for the softer metal's rapid dulling. Zirconium oxide's natural edge retention allows for Slice's proprietary finger-friendly® grind, which is designed to be safer to touch while maintaining its cutting performance. It’s important to note, though, that the safety edge is unique to Slice and doesn’t apply to other ceramic blades. Slice's longer lasting blades also reduce potentially dangerous blade handling, as they don't need to be switched nearly as often as steel. And, because of their safer edge, Slice's recyclable blades do not require special sharps disposal boxes.