QualityParts From Oregon That you can depend on. Center hole: 7/8": Aggressive blade angle increases air flow to push debris up and out for superior bagging or side discharge; Gator MulcherĀ® provides cleaner, more efficient cutting performance can eliminate the need to bag, saving time and hassle.; Replacement for major brand: Murray; ; ; Oregon Equipment Parts 97-601 Blade Murray Gator G3