QualityParts From Oregon That you can depend on. Center hole: 5/8": Requires 3 blades for 48" 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: Dixon and Country Clipper; Oregon Equipment Parts 92-160 Blade Country Clipper H2653