DOP98-007MTD MTD Mulching Blade fits 21" Cut Decks for models 312R, 313R, 315R, 488, 828, 848, 100, 400, 500 & 800 1993 & after, walk behinds. Size: Length: 20-15/16", Center Hole: 53/64", Outer Hole: 13/32", Center to center: 2-1/2", Width-thickness: 225-134. Replaces # 742-0563, 742-0721 & 942-0721.
{Blades are sold individually}