Oregon Gator Mulcher 3-N-1 Blade For 48-Inch John Deere Lawn Mowers 96-618 Replaces OEM No. M135589 Order 3 for a 48-Inch Cut Blade Length (Measured Diagonally): 16-9/16in. Center Hole Diameter: 25/32in. Width: 2.50in. And Thickness: .203in.