Professional 96-363 G ator 3-Pack Lawn Mower Blades are engineered for commercial-grade Kub ota zero-turn mowers. Forged from high-carbon steel with triple quenching process, these blades meet military-standard hardness to withstand impacts from rocks and branches. The patented wave-edge design, optimized through CFD simulation, creates aerodynamic cushioning to reduce vibration and noise during high-speed operation. Each blade undergoes dynamic balancing (≤0.5g tolerance) to ensure perfect compatibility with Ku bota ZD21/DZ28/ZD323/ZG327 series, restoring factory-level cutting performance upon installation. 【Precision Cutting】Laser-sharpened edge increases sharpness by 40%, ideal for dense turf and overgrown grass 【Perfect Fit】Specifically designed for 60" Ku bota ZD21/DZ28/ZD323/ZG327 series, exact OEM mounting hole alignment 【Military-Grade Material】3mm high-carbon steel with heat treatment (55-60HRC), 3x corrosion-resistant lifespan 【Aerodynamic Design】Wave-shaped blade reduces drag, boosts efficiency while cutting fuel consumption by 15% 【Ready-to-Install Kit】3 pre-balanced blades with anti-vibration stainless bolts, no professional tools required