XHT 18", 2-1/2" Mower Blade (Single) - B1EM1884,1

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 resistant lawnmower blades on the market. Center Hole 15/16" Length 18" Replaces Exmark: 103-6387 Thickness .197" Width 2-1/2" Crossed From: 103-6387 EXMARK 103-6387-S EXMARK 1036387 EXMARK 1036387S EXMARK 11451 ROTARY 355-339 STENS 355339 STENS 92-027 OREGON 92027 OREGON A physical address must be provided NO PO BOXES. Thanks for looking!