Oregon Fusion Blade For 42-Inch Cub Cadet/Troy-Bilt/Yard Machines/Yard-Man Lawn Mowers 498-059 Replaces OEM No. 742-0616 and 942-0616 Order 2 for a 42-Inch Cut Blade Length (Measured Diagonally): 21-3/16-Inch Center Hole Diameter: 5/8-Inch star, Outer Holes Diameter: 5/16-Inch star, Center-to-Center Distance of Outer Holes: 2-1/2-Inch Width: 2.75-Inch and Thickness: 0.149-Inch