Oregon 91-328 Mower Blade, 19-3/8" Center hole: 3/4" Requires 2 blades for 38" cut High-lift: The aggressive blade angle increases air flow to push debris up-and-out for superior bagging or side discharge Superior mulching for bagging and discharge efficiency Enhanced hardening to keep the blade sharper and more durable Replaces major brands: Cub Cadet and MTD