Ceramic Utility Knife Blades 10-Pack for U1, U1 Pro & U1 Ultra

Best option for my Oknife. Comes with 10 blades and they are SHARP. Love their products and will continue to use them.

These blades are extremely sharp! But, being made of ceramic, the edge is extremely delicate. On the plus side, they do not corrode and become dull over time. I would use them in a pocket knife style box cutter knife and then use the knife to cut rope, thread, and similar every day delicate cutting jobs, knowing that it will always be sharp and ready for duty. If you are looking for a heavy duty blade for everyday box cutting, carpet trimming, etcetera, don’t consider this type of material for your blade.

Exceeded my expectations, edge retention is amazing, blades are surgical sharp. Great product!

nice blades the edge retention is amazing and they are pretty durable for ceramic blades

Very sharp and stay sharp. They’re brittle and may break if flexed. I use mine for opening boxes and cutting cords. If you’re using it for other stuff—don’t—unless you’re prepared to replace. If all you do is snap off the tip, just turn it around in blade holder. Voila! Not cheap, but worth it to me.

Well, they are a little pricey. They seem good, I’ve been using them for about a week. I’m not sure the ceramic blades are worth the hype. Not sure how long they’ll last, but I guess we’ll see.

incredibly sharp. last many times longer than steel blades. They are, being carbide, more brittle than steel, so be careful about nicking the tip off. I feel they are well worth the tradeoff though. You don't have to baby them, but they will snap off if you wrench on them. If you are a neanderthal, you probably want to stick with steel blades.

These are AMAZING!!! I can now cut stainless steel mesh without needing to replace as often creating a big time saver

Nice

Exactly what I was looking for. Beats the steel blades. Retains sharpness longer, more corrosion resistant. Good quality