Having trouble finding a good set of blades which are no longer being made by Sears?  Look no further.  These will work perfectly

12" x 15/32" x 1/16", High Speed Steel, double edged, 2 piece set of blades. 

If you use Craftsman 21722 Planer, and need new blades, try our  replacements. We gurantee you will be pleased.