Maxpower 561713X Commercial Mulching 2-Blade Set for 42 Inch Poulan/Husqvarna/Craftsman Replaces 138498, 138971, 138971X431, 532138971, and Many Others

21" used on 42" decks. Has a 5 point star hole and will mulch. Mulching results will improve considerably if used with the plastic mulch plate that covers the discharge hole. This blade can also be used with a bagger, provides slightly better lift...