OLFA's .5 mm UltraMax Heavy-Duty Black Carbon Steel Blades (LBB-50B) design ensures reduced blade breakage and increased resilience, enhancing overall safety and efficiency. Suitable for use in various industries, including construction, crafting, and packaging, OLFA's LBB-50B blades deliver reliable, consistent results. The black carbon steel construction resists corrosion and maintains sharpness over time, ensuring optimal cutting performance.