This is a A-56451200 Blade, Disc Mower, LH PN: 56451200Main Description As Following : A-56451200 Blade, Disc Mower, LH P.N: 56451200 New disc mower blade, left hand. Blade is 1.772" x 4.843", type 9. Fits Kuhn disc mowers.Sold in Multiples of 25Hole Diameter: .716" / 18.2mmLength: 4.843" / 123mmThickness: .157" / 4mmType: 9 LHWidth: 1.772" / 45mm Stocked As: A-76N198 , Crossed From: KN56451200 FRONTIER , 564-512-00 , , 564-512-00-5 , Found in Section & Models : Hay Tool Parts > Disc Mower Blades, Frontier MOWER, DISC: DM1270, Kuhn MOWER, DISC: GMD500S (Angled HD Blade For HD Discs), Kuhn MOWER, DISC: GMD55S (Angled HD Blade For HD Discs), Kuhn MOWER, DISC: GMD600HD (Angled HD Blade For HD Discs), Kuhn MOWER, DISC: GMD66HD (Angled HD Blade For HD Discs), Kuhn MOWER, DISC: GMD700HD (Angled HD Blade For HD Discs), Kuhn MOWER, DISC: GMD77HD (Angled HD Blade For HD Discs), Kuhn MOWER, DISC: GMD800HD (Angled HD Blade For HD Discs) Associated Items : New Also This is An Aftermarket Product And : New disc mower blade, left hand. Blade is 1.772" x 4.843", type 9. Fits Kuhn disc mowers. Sold in Multiples of 25 Hole Diameter: .716" / 18.2mm Length: 4.843" / 123mm Thickness: .157" / 4mm Type: 9 LH Width: 1.772" / 45mm