Sunbelt B1SC3801 18-in. XHT Lawn Mower Blade for 36-in. & 52-in. Decks is a high-performance mower blade designed for commercial mowers from leading brands such as Ferris, Scag, Wright, Exmark, Bad Boy, Husqvarna, Toro, and Snapper. This 18-inch blade features a longer air lift and is crafted with Sunbelt’s patented Marbain® heat-treated steel, ing exceptional hardness and toughness. The blade measures 18 inches long by 2-1/2 inches wide and is .197 inches thick, with a 5/8-inch diameter center hole. Its medium lift and notched design provide efficient cutting performance while resisting bending and impact damage. XHT blades are approximately 25% to 40% harder than standard lawn mower blades, ensuring a sharper edge that lasts longer and delivers tight tolerances when d to equipment blades. This blade is compatible with both 36-inch and 52-inch decks, making it a versatile choice for maintaining your lawn equipment. Model Number: B1SC3801