New Old Stock Notched Disc Harrow Blade.
Disc blade is 20" inches in diameter.
Concavity (depth of the curvature of the blade) is 2-1/4" inches.
Square center mounting hole.
The center axle shaft hole is double punched to allow for a 1-5/16" inch or 1-5/32" inch square shaft.
Replacement aftermarket disk blade part number 2586.
These disk are new old stock from a dealership liquidation and will have some rust due to prior storage and age.