QualityParts From Oregon That you can depend on. Center hole: 1-1/8": High-lift: The aggressive blade angle increases air flow to push debris up-and-out for superior bagging or side discharge.; High-lift is for Kubota models: RCK60-27B, RCK60-24B, RC60B-21; Superior mulching for bagging and discharge efficiency; Enhanced hardening to keep the blade sharper and more durable; Made to exact OEM specifications; Replacement for major brand: Kubota Oregon Equipment Parts 92-130 Blade Kubota K5651-34330 -20