XHT Replacement Blade for Exmark 103-6401 (Set of 9) - B1EM1895,9 Grass Bags and Bag Frames 1/2" Mulching Mower Blade (Set

1/2" Mulching Mower Blade (Set of 4) - B1PD1031

SST18 (48")

Fits the following John Deere models: 4000

H165 Licensed John Deere OEM Product

Fits the following John Deere models: 12PM

XHT Replacement Blade for Exmark 103-6401 (Set of 9) - B1EM1895,9 Grass Bags and Bag Frames 1/2" Mulching Mower Blade (SetXHT Replacement Blade for Exmark 103 6401 (Set of 9) B1EM1895,9 XHT Replacement Blade for Exmark 103 6401 B1EM1895 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