Olfa UltraMax Heavy Duty 18mm Snap-Off Blades, 10/Pkg.

Designed for maximum cutting performance, UltraMax ultra-sharp premium 18mm heavy-duty snap-off black blades are ideal for applications where superior sharpness is required. They are made from high quality carbon tool steel using a double honing process for extreme sharpness. They fit most Heavy-Duty handles. Eight cutting edges per blade. Ten blades per pack.