Brand New - Unused Parts.
Requires 3 blades for 48" cut
100 Series Blades formed with double bevel technology for extended cutting edge and reduced
Blade noise, high lift
Resists bending, breaking and fracturing
Replaces 173920, 173921, 180054, 512258301, 532173920, 532173921, 532180054, 539107519, 575938201, 575938301, 917173920, 917532173920, 917532173921, 917532180054, 917539107519, 917577203106, 954633774, 954633781.