BLACK+DECKER EB-007 Edger Hog Heavy-Duty Edger Replacement Blade ( 2 Blades) Replacement edger blade for the 2-in-1 Landscape Trencher Factory-sharpened serrated blade for professional use Crafted from hardened steel for cleaner cuts 7-1/2-inch blade with wear indicator Includes the 7-1/2-inch Edger Hog Heavy-Duty Edger Replacement Blade