Mill Supply carries a variety of replacement lawn mower Edger Blades that fit Weed Eater as well as other Weed Eater parts.

Edger Blade,7"Lx1 1/2"W,Hole dia. 9/16",.095" Thick
Replaces Weed Eater 701557

Edger Blade,8-1/2"Lx1-1/2"W,Hole 9/16",.120" Thick
Replaces Weedeater 530095086
Mower-parts.net carries replacement Edger Blades that fit many models including Weed Eater. Mill Supply is your source for Weed Eater Edger Blades and other Weed Eater parts and accessories.