Troy bilt 42 blades 2X MULCHING 42" DECK 742-0616 942-0616 MTD CUB CADET WHITE Fits Models: MTD 1997 and newer and autodrive step-thru framelawn tractors 1999 and newer; requires 2 for42" cut, TORO 13AX60RG744, requires 2 for 42" cut, Troy Bilt Fits 600 series 2006-2010; Requires 2 for 42" deck Length: 21 1/4 " Center Hole: 6 pt. star Outer Hole: 5/16 " Width: 2 3/4 " Thickness: .149 " Requires 2 for 42" cut Specially deisgned center hole to replace six point star