The OLFA 9mm Black Snap Blades are sharper than the silver by up to 25%. These OLFA blades are made with carbon tool steel from Japan and are honed on both sides of the blade for professional-grade cutting.
Use the 9mm blade in your snap knife when precision is required. Each blade gives you 13 sharp segments and is easy to snap to the next section when you need a fresh edge.
Use OLFA 9mm Precision Ultra-Sharp Black Snap-Off Blades in your utility knife to cut foam board, molding, wallpaper, caulk, vinyl, cardboard, paper and more with extreme precision. Available in packs of 10 or 50.