Replacement Heavy Duty Powder Coated Metal Lower and Upper Blades for Honda Lawnmowers (21" / 53cm) Brand new, premium quality replacement blade for Honda lawnmowers. Expertly crafted with powder coated rust and weather resistant steel, this fully compatible heavy duty blade features dual curved ends for highly effective grass cutting in gardens of all sizes. This lower shaped blade creates strong suction and airflow, pulling grass blades upright for a cleaner, more even cut. It also helps discharge clippings efficiently, making it ideal for bagging or tackling tall, wet grass. Lower Cutter Blade: Equivalent to Part Nu.