Zirconium Oxide
We make all our slice™ products with a high-tech ceramic called zirconium oxide. Next to diamonds, it’s the most durable substance on Earth. (You may find it just as valuable as diamonds as you slice through projects with ease and keep your fingers safe and sound.)

How hard is ceramic?
The scientific MOHS scale rates the hardness of various substances. German mineralogist Friedrich Mohs came up with the scale in 1812. He rated 10 minerals available at the time from 1 to 10.

Scientists have been using Fred’s scale ever since, adding more substances as they’re discovered. Diamonds are still at the top as numero 10. slice™ceramics are pretty close to diamonds — around 8.2.

How hard is metal?
Where does metal show up? Way down the scale, sad to say. The steel blade of your average knife is a mere 5.5. Pretty flimsy, we think.

Ceramic is better than metal
Compared to any metal (even high-carbon steel), ceramic is sharper, harder, and stays that way longer. That’s why you’ll find ceramics used in satellites, race cars, and even operating rooms. Many surgeons, for example, prefer ceramic, not metal, for bone-replacement operations.

All in all, slice™ ceramic is a whole lot better than 
your average metal blade — for a lot of reasons:

slice™ ceramic:      •  Extremely hard  •  Ergonomic design  •  Ultra-sharp  •  No metallic or food after-taste   (and stays that way)  •  Won't brown food  •  Won't rust  •  Resists germs, acids & oils  •  Won't stain  •  Lasts many times longer than steel  •  Won't dull  •  Remains sharp for years  •  Resists wear and tear  •  Ultra-light  •  Easy to clean  •  Non-stick  •  Easy to use  •  Well balanced  •  Lightweight  •  Reduces fatigue

Metal blades:      •  Rust  •  Stain  •  Bend  •  Pit  •  Dull  •  Scratch  •  Wear out quickly  •  Susceptible to chemical corrosion  •  Hazardous to use  •  Leave metallic taste in food