Hi-Lift Blade Requires 2 of 335-525 and 1 of 335-533 for 46" deck, Thickness: .120 ", Center To Center: 2 1/2 ", Packaging Type: Branded label, Outer Hole: 5/16 ", Length: 16 1/4 ", Specially designed: to replace 6 pt. star center hole, Center Hole: 6 pt. star, Width: 3 ". Replaces Part Numbers: MTD 742-0542, MTD 942-0542, Troy-Bilt 942-0542, Troy-Bilt 742-0542, Troy-Bilt 753-0571, MTD 753-0571. Stens Part Number: 335-525