Olfa Excel Black 18mm Blades 10 Pack (LBB10B) are ultra sharp blades.

• Ultra sharp blade
• 18mm Excel Black blade is 0 5mm thick
• Blade is sharpened over a wider angle, making the blade much sharper than other blades on the market
• Fits most Heavy-Duty handles
• 10 Blades per pack, 8 cutting edges per blade
• Exclusively designed for maximum cutting performance
• 25% sharper than the OLFA silver Heavy-Duty LB blades
• Ideal for applications where superior sharpness is required
• The OLFA black blades are double-honed for extreme sharpness
• Long lasting, durable snap-off blade - a new sharp edge with just a snap