This is a A-4640 Blade, Rotary Cutter, CCW PN: 4640Main Description As Following : A-4640 Blade, Rotary Cutter, CCW P.N: 4640 Center Of Hole To End Len: 28.250"Hole Diameter: 1.500"Offset Height: 2.000"Overall Length: 30.750"Thickness: .500"Type: CCWWidth: 3.500" Stocked As: A-80A464 Found in Section & Models : Hay Tool Parts > Rotary Cutter Blades, Fred Cain ROTARY CUTTER: ROTARY MOWER - CHECK DIM. Associated Items : New Also This is An Aftermarket Product And : Center Of Hole To End Len: 28.250" Hole Diameter: 1.500" Offset Height: 2.000" Overall Length: 30.750" Thickness: .500" Type: CCW Width: 3.500"