With this OLFA® UltraSharp blade, you'll be surprised at the difference 25% can make. Less resistance means quicker and more precise cuts. The blades are designed to cut through packaging, shrink wrap, vinyl, window film, wallpaper, caulking, foam board and other materials.

• 13-segment,9mm snap-off blade
• Made from high-quality carbon tool steel
• Ultra-sharp black blade has a 25% sharper edge for less cutting resistance
• Exact 59-degree edge optimizes cutting power and minimizes blade breakage
• Fits OLFA PRO 9mm utility knives