An ultra-sharp carbon blade, ideal for applications where superior sharpness is required.  These blades are double-honed for extreme sharpness and are 25% sharper than the standard duty carbon blade.  Eight cutting edges per blade, 50 blades per pack.  Fits most standard Olfa knives.The OLFA ABB-50B Carbon Blades (50-Pack) deliver exceptional cutting precision and durability for a variety of tasks. Made with high-quality carbon steel, these blades provide sharp, long-lasting performance, making them a reliable choice for professionals and DIY enthusiasts. Compatible with OLFA knives, they are perfect for detailed and heavy-duty cutting projects.