This is a A-56150000 Blade, Disc Mower PN: 56150000Main Description As Following : A-56150000 Blade, Disc Mower P.N: 56150000 Sold in Multiples of 25Hole Diameter: .640" / 16.25mmLength: 3.779" / 96mmThickness: .118" / 3mmType: 1 RH/LHWidth: 1.575" / 40mm Stocked As: A-76N919 Found in Section & Models : Hay Tool Parts > Disc Mower Blades, Kuhn MOWER, DISC: FC44 (Flat STD Blade For STD Discs), Kuhn MOWER, DISC: FC55 (Flat STD Blade For STD Discs), Kuhn MOWER, DISC: GMD33 (Flat STD Blade For STD Discs), Kuhn MOWER, DISC: GMD44 (Flat STD Blade For STD Discs), Kuhn MOWER, DISC: GMD55 (Flat STD Blade For STD Discs), Kuhn MOWER, DISC: GMD66 (Flat STD Blade For STD Discs), Kuhn MOWER, DISC: GMD77 (Flat STD Blade For STD Discs) Associated Items : New Also This is An Aftermarket Product And : Sold in Multiples of 25 Hole Diameter: .640" / 16.25mm Length: 3.779" / 96mm Thickness: .118" / 3mm Type: 1 RH/LH Width: 1.575" / 40mm