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

Edger Blade,6-3/16"Lx1 1/2"W,Hole dia. 1/2",.095" Thick,Fits electric edgers.
Replaces Black & Decker 82-010

Edger Blade,7-17/32"Lx1-1/2"W,Hole 7/16",.095" Thick,Unsharpened
Fits Black & Decker 82-024.
Mower-parts.net carries replacement Edger Blades that fit Black & Decker mower models as well as other Black & Decker mower parts.