OKNIFEUtility Knife Blades 10 Pack - Compatible with Otacle U1 & U1 Pro Series and Most Utility Knives, Ultra Sharp Durable SK5 Steel for Heavy-Duty Cutting Tasks

Just as advertised. Fit perfectly into my knife and are great quality.

I've used several brands and these work just as well as any other. Nice little plastic container to store them. Did standard utility knife, cleans granite and quartz without discoloring seams.

Price point was high at about $2.00 per blade. Not sure how much longer they will hold an edge over steel. Do not feel any sharper than regular blades, but that is my feeling the edge with no scientific measurement. At white in color they have the cool look.

Good quality and work perfectly. Will buy again

Easy install and perfect fit.

We have a cool NK folding box cutter. It was a gift from a connoisseur of fine knifes LOL. Once breaking the tip off the blade that came with it, we headed to Home Depot to get refills. Not so fast, turbo. The blades on the shelf do not have the little holes needed to line up properly. So we returned the ordinary blades and headed to Amazon for the more esoteric varieties. The hole pattern of these blades looked right, and they were. BTW, you’ll need a tiny torx pattern wrench, to open your knife. Hold it over a cloth, so the world’s tiniest screw won’t bounce away and disappear forever. So, awesome, we can use the knife all we want without treating it with kid gloves.

They must be the sharpest blade in the market, but they brakes very easily.I will not buy them again!

Love my little oknife and it's silly they take a special blade. But this is that special blade that keeps the knife in use.