Oregon Gator Mulcher 3-N-1 Blade For 21-Inch John Deere Lawn Mowers Made By Lawn Boy 92-601 Replaces OEM No. PT7132, and PT14764 Blade Length (Measured Diagonally): 20-7/8-Inch Center Hole Diameter: 5/8-Inch Outer Holes Diameter: 17/32-Inch, Center-to-Center Distance of Outer Holes: 2-19/32-Inch Width: 2.50-Inch and Thickness: 0.187-Inch