This is a A-13722427 Blade, Disc Mower PN: 13722427Main Description As Following : A-13722427 Blade, Disc Mower P.N: 13722427 Sold in Multiples of 25Hole Diameter: .748"/ 19mmLength: 3.267"/83mmThickness: .118"/3mmType: 1Width: 1.575"/40mm Stocked As: A-76N276 Found in Section & Models : Hay Tool Parts > Disc Mower Blades, Krone MOWER, DISC: DISC MOWER - CHECK DIM. Associated Items : New Also This is An Aftermarket Product And : Sold in Multiples of 25 Hole Diameter: .748"/ 19mm Length: 3.267" / 83mm Thickness: .118" / 3mm Type: 1 Width: 1.575" / 40mm