OLFA 9mm Snap Off Replacement Blades, 50 Blades (650 Segments) ABB-50B - Ultra-Sharp Black Utility Knife Replacement Blades, Fits most 9mm Utility Knives

I’ve been using the OLFA 9mm Snap-Off Replacement Blades for wrapping and window tinting, and they’ve quickly become a must-have in my toolkit. These blades are incredibly sharp and durable, making precision cuts effortless. The snap-off design means I always have a fresh edge ready to go, which is especially important when working on detailed vinyl wrap jobs or tint installations where clean lines are everything. What really stands out is how smoothly they cut—no tearing, dragging, or missed edges. They fit perfectly in my OLFA utility knife, and I’ve noticed they stay sharper longer than other brands I’ve tried. If you’re in the business of vinyl wrapping, automotive tint, or any kind of detail work, these blades are 100% worth it. Highly recommended for professionals and serious DIYers alike!

So easy to change out. Love these.

Olfa blades are unmatched

A great step up from the regular blades that are just silver. Each one lasts longer and are less flimsy, clips off into olfa container cleanly and safely. Container easy to transport.

The box design - jeezus it’s great. It is what all container designs should be. This is Japanese design exemplifies. The satisfying way the box closes is so good and so simple. Oh and the blades are awesome course.

They are very sharp

I work in a factory that uses these 9mm knives to remove flash from plastic injection molded car parts. The extra sharpness of these blades makes cutting the excess plastic material a breeze, but beware that the blades do dull rather easily and they tend to be more brittle in my experience. I've noticed the ultrasharp black blades will break easier when not cutting with the direct sharp edge, like if you have to rake the black to the side in a tight spot, these will break. Otherwise, they are a superior blade, just wish I could find some ultra sharps with a 30 degree angle, hit me up for a custom batch OLFA, our factory would appreciate the steeper angle :)

Best price around