The OLFA UltraSharp black heavy-duty snap-off blades are exclusively designed for maximum cutting performance and are ideal for applications where superior sharpness is required. Made from a high-quality carbon tool steel, the OLFA black blades are double-honed for extreme sharpness and are 25% sharper than the OLFA silver Heavy-Duty LB blades.

Features

• Long lasting, durable snap-off blade - a new sharp edge with just a snap.
• Blade container locks for safety.
• Fits most Heavy-Duty handles.
• 8 cutting edges per blade. 

10 pcs/ctn