This is a A-UTB2031A Blade, Rotary Cutter, CW PN: UTB2031AMain Description As Following : A-UTB2031A Blade, Rotary Cutter, CW P.N: UTB2031A For 50" Deck Boom Mowers w/ 2" OffsetCenter Of Hole To End Len: 14.687"Hole Diameter: 1.500"Offset Height: 2.000"Overall Length: 17.375"Thickness: .500"Type: CWWidth: 5.000" Replaces: TB2031A , WP2031A JOHN DEERE , 6TB2031A TIGER , 80A31 TIGER , Crossed From: TB2031A , , 404-TB2013A , , 404-TB2031A , , 404TB2013A , Found in Section & Models : Hay Tool Parts > Rotary Cutter Blades, Tiger ROTARY CUTTER: BOOM MOWER Associated Items : New Also This is An Aftermarket Product And : Center Of Hole To End Len: 14.687" Hole Diameter: 1.500" Offset Height: 2.000" Overall Length: 17.375" Type: CW