Tungsten Carbide-tipped Bad Boy 42 in. MZ Fusion Lawn Mower Blades last up to three times longer. This means fewer replacements and less downtime for you, ensuring your mower stays in top condition through more mowing seasons. Not only do these blades offer extended longevity, but their design also enhances cutting performance, delivering a cleaner, more efficient cut on your lawn. Whether you're tackling tough grass or dealing with debris, these blades maintain sharpness, reducing the need for frequent sharpening.