These Olfa® Black Ultra Sharp Blades are designed for more demanding materials and projects. Use these blades for cutting industrial materials such as gaskets, conduit, belt synthetics, rope, leather, laminate, plastics, fiberglass, rubber and textiles. Good for general construction and industrial maintenance. Made of high quality carbon tool steel. Has a 25% sharper edge for less cutting resistance. Seven segments per blade.
Fits Olfa® Pro 25mm Utility Knives. (H-1, NH-1 & XH-1)