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

Edger Blade,7-11/16"Lx2"W,Hole 1",.095" Thick
Fits Edger Tool 2851

Edger Blade,8"L,Hole 1",.095" Thick
Fits Edger Tool
Mower-parts.net carries replacement Edger Blades that fit Edger Tool mower models as well as other Edger Tool parts.