Blade Width – 3.00. Thickness – 0.164. Blade Length – 17. Center Hole Size – 7 pt. Air Lift – 1. Move through work quickly with the Oregon® Gator® G5T 592-616, a blade that sets the industry standard. It’s not a replacement blade. It’s an upgrade. Center hole: 7 point star. Tungsten carbide is “fused” into the blade – creating an ultra-hard layer at the cutting edge and increasing the time between sharpening. X-Tended Cutting LengthT optimizes the cutting efficiency with each revolution. Gator Mulcher® provides cleaner, more efficient cutting performance can eliminate the need to bag, saving time and hassle. The aggressive blade angle increases air flow to push debris up-and-out for superior bagging or side discharge. Replacement for major brand: John Deere. Replaces the Following Blades. AM137757, AM137758, AM141035, AM141036, GX21784, GX21785, GX21786, GY20852.