- Replacement for Part Numbers: Designed to replace MTD part numbers 742-04276, 742-0641, 942-0641, ensuring seamless compatibility and reliable performance. - Compatible Models: Works with Troy-Bilt Tuff-Cut 220 and 230 with 21" decks, as well as Cub Cadet models including 5521, CC46ES, CC94M, CC98H, CC98M, CC999ES, CC99M, SC100, SC500, and SC300 walk-behind mowers. - Broad Compatibility: Suitable for a variety of brands, including MTD Columbia, Craftsman, Huskee, Mastercut, White, Yard Machines, and Yard-Man, specifically for 21" walk-behind decks. - Blade Specifications: Each blade measures 21 inches in length, 2 1/9 inches in width, and has a thickness of 0.118 inches. The center hole dimensions are 7/8 x 3/4 inches. This is a set of 2 blades for convenience. Key Benefits: - Enhanced Cutting Performance: These blades deliver a clean, precise cut while maintaining the health of your lawn, ensuring a professional-quality finish every time you mow. - Easy Installation: Designed for straightforward replacement, allowing you to quickly restore your mower's functionality without hassle. - Durable Construction: Made from high-quality materials to withstand wear and tear, providing long-lasting performance season after season. Use Scenarios: 1. Lawn Care: Ideal for homeowners managing small to medium-sized lawns, helping you achieve an even cut for a manicured appearance. 2. Commercial Use: Suitable for landscapers and maintenance crews requiring dependable and efficient mowing tools to handle various turf conditions. 3. Routine Maintenance: Perfect for seasonal blade replacement, ensuring your mower operates at peak efficiency year-round.