Replaces old Oregon Number 91-264. Blade Width – 2.50. Blade Length – 20-1/2. Center Hole Size – 5/8. Air Lift – 1. The OregonĀ® 91-264 replacement lawn mower blade is made to the exact OEM specification for optimum performance. Our blades are individually straightened and hardened to provide a consistent, cleaner cut and increase blade longevity. Requires 3 blades for 60 cut. Fits many Lazer Z series. Major brand replacement: Exmark. Explorer II, Lazer Z, Lazer Z, Lazer Z AC, Lazer Z AS, Lazer Z LC, Lazer Z XP, Lazer Z XS, Lazer Z XS Air Cooled, MK522, MK602, MK603, MK604, Turf Ranger, Turf Tracer Five Speed, Turf Tracer Hydro. Super Z, XR-7, Z. 30227-60, 30227-60E, 30227-60H, 30227-60T, 30227-60V, 30227-60X, A30227-60N. 12421, 12451, 12508, 13368, 13869, 13870, 13921, 13922, 13956, 13957, 13958, 13960, 539119871, 9383. 600901, 602771, 602771X, 603992, 603992X, 793794, 793794X, 793794Y, 793935, 793935X, 794214, 794214X, 794230, 794230X, 794230Y, 794685, 794685X. Dixie Chopper 30227-60, 30227-60E, 30227-60H, 30227-60T, 30227-60V, 30227-60X, A30227-60N. Hustler 600901, 602771, 602771X, 603992, 603992X, 793794, 793794X, 793794Y, 793935, 793935X, 794214, 794214X, 794230, 794230X, 794230Y, 794685, 794685X.