QualityParts From Oregon That you can depend on. Center hole: 5/8": Requires 2 blades for 32" cut and 3 blades for 48" cut; Enhanced mulching for bagging and discharge efficiency; Stays sharp and durable for longer; Fits Kees Models: HKW4814, HVG48161, MKW48121, MKW48141, ZMB48181, ZMKW48191; ; Oregon Equipment Parts 99-127 Blade Snapper 7017036Bmyp 16