With Predator2 blades it starts with the steel,
featuring a unique steel that incorporates boron, carbon, manganese,
and other materials that ensure its strength. The final step in the
process is the patented and independently tested Marbain® heat-treating
process. This process makes Predator2 blades approximately 25% - 40%
harder than standard lawnmower blades,making them the longest-lasting,
safest and most impact resistant lawnmower blades on the market.