Extra Heavy-Duty Ultra-Sharp Black Snap-Off Blades (25mm, 40pk) are made from Japanese carbon tool steel. These long-lasting blades are durable and 25% stronger than standard OLFA silver blades.
 
These blades are used for cutting nylon, rope, high-pressure laminates, expansion board and consist of seven segments per blade to deliver a fresh new edge quickly and easily.

Features:

• Double-honed edge for superior sharpness
• Snap quick and easy for new sharp cutting edge every time
• 7-segment, 25mm snap-off blade
• Fits 25mm utility knives