Mill Supply carries a variety of replacement lawn mower Edger Blades that fit several styles of mowers including |man|.

Edger Blade,10"Lx2"W,Hole 3/8",.125" Thick,Tapered,Sharpened 4 sides

Edger Blade,10"Lx2"W,Hole 1/2",.125" Thick,Tapered,Sharpened 4 sides

Edger Blade,10"Lx2"W,Hole 1/1"x 29/64",.125" Thick,Square-round center hole

Edger Blade,10"Lx2"W,Hole 5/8",.125" Thick,Tapered,Sharpened 4 sides

Edger Blade,9"Lx2"W,Hole 3/8",.117" Thick,Tapered,Sharpened 4 sides

Edger Blade,9"Lx2"W,Hole 1/2",.117" Thick,Tapered,Sharpened 4 sides

Edger Blade,9"Lx2"W,Hole 1/2"x 29/64",.117" Thick,Square-round center hole

Edger Blade,9"Lx2"W,Hole 1/2",.095" Thick,Unsharpened

Edger Blade,12-1/16"Lx2"W,Hole 1/2",.125" Thick,Square,Sharpened 4 sides

Edger Blade,12-1/8"Lx2"W,Hole 1/2",.125" Thick,Unsharpened

Edger Blade,8-9/16"Lx2"W,Hole 1/2",.095" Thick,Unsharpened
Mower-parts.net carries replacement Straight Edger Blades that fit |man| mower models.