Set of 4 XHT Replacement Blade for EXMARK 36"/52" - B1EM1883 Snap Rings John Deere Original Equipment 3

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Set of 4 XHT Replacement Blade for EXMARK 36"/52" - B1EM1883 Snap Rings John Deere Original Equipment 3SET OF 4 XHT Replacement Blade for EXMARK 36" 52" B1EM1883. XHT (Xtreme Hardness & Toughness) blades feature a unique steel that incorporates boron, carbon, manganese, and other materials that ensure its strength. The blades are heat treated with the patented and independently tested Marbain heat treating process. This process makes the blades 25% 40% harder than standard lawnmower blades, making them the longest lasting, safest, and most impact