This is a A-110190102820 Blade, Disc Mower PN: 110190102820Main Description As Following : A-110190102820 Blade, Disc Mower P.N: 110190102820 For Rotary Disc or Drum MowersHole Diameter: .748"/19mmLength: 3.267"/83mmThickness: .118"/3mmType: 1Width: 1.575"/40mm Stocked As: A-76N276 , Crossed From: 110190102820-5 , Found in Section & Models : Hay Tool Parts > Disc Mower Blades, Fahr MOWER, DISC: SEVERAL Associated Items : New Also This is An Aftermarket Product And : For Rotary Disc or Drum Mowers Hole Diameter: .748" / 19mm Length: 3.267" / 83mm Thickness: .118" / 3mm Type: 1 Width: 1.575" / 40mm