This is a A-50030319 Blade, Disc Mower, LH CCW PN: 50030319Main Description As Following : A-50030319 Blade, Disc Mower; LH CCW P.N: 50030319 Hole Diameter: .843" / 21.41mmLength: 5.00" / 127mmThickness: .157" / 3.98mmWidth: 1.90" / 48.26mm Found in Section & Models : Hay Tool Parts > Disc Mower Blades, Bush Hog MOWER, DISC: HM2007, Bush Hog MOWER, DISC: HM2008, Bush Hog MOWER, DISC: HM2009, Bush Hog MOWER, DISC: HM2407, Bush Hog MOWER, DISC: HM2408, Bush Hog MOWER, DISC: HM2409 Associated Items : New Also This is An Aftermarket Product And : Hole Diameter: .843" / 21.41mm Length: 5.00" / 127mm Thickness: .157" / 3.98mm Width: 1.90" / 48.26mm