Upgrade your lawn maintenance with Abbyisd's professional-grade 20-1/2" mower blades. Engineered for Ga tor G6 compatibility and models requiring M113878/AM100538 blades, this 3-pack set delivers unmatched cutting efficiency. Each blade is forged from ultra-durable high-carbon steel with anti-corrosion coating, ensuring longevity even in wet or rocky terrains. The precision-balanced design reduces vibration for smoother operation, while pre-aligned holes enable 10-minute installation. Ideal for both residential lawns and commercial landscaping crews seeking reliable, cost-effective performance.