A&I Blade-Mower, Xht, 20-1/2", 1-1/8" - B1KU1024,1
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. Sold individually. 3 required per application. Dim E (5): XHT Dim F (6): 3 Blades Used For 60" Cut Center Hole: 1.125" Length: 20.500" Replaces: K5647-34330, K5647-34340 Thickness: .250" Width: 2.500"
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