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 high-quality carbon tool steel; the OLFA black blades are double-honed for extreme sharpness and are 25% sharper than the OLFA sliver 18mm LB blades. Cuts drywall, linoleum, insulation, carpet, rubber and more. Blade container locks for safety. 8 cutting edges per blade. Replacement blades for OLFA knife #s CL, OL, NOL-1, LA-X, L-2 and SL-1 (sku #s: 427.6622, 933.0614, 574.2358, 228.2572, 215.3278 and 531.4679).

• UTILITY KNIFE BLADES
• Blade Ht mm=18
• ULTRA-SHARP
• SNAP OFF