Black Decker Mod 7696 planer cutter blades what replacement part is available?

You have a couple of options available for replacement blades for that machine You can either go with manufacturer part number 372105-01 carbide tipped blade, or 878434-90 high density steel blade. I found the best place to find these is http://www.ereplacementparts.com These blades are usually sold individually so you will probably have to purchase two.