Set of 2, Longer Life Gator Fusion G5 3-In-1 Mulching Blades to Replace MTD Blades 742-0616, 942-0616, 742-04126 942-04312 Used on some 42" Decks, MTD, Cub Cadet, White, Wards, Yard Man, Troy Bilt. Set of 2 Blades, Quality Gator "Fusion G5" Blades - Oregon part #598-629 Replaces Cub Cadet MTD blades: 742-0616, 942-0616, 742-04126 942-04312 21-3/16" Long, 3" Wide, .164" Thick, Mounting hole to fit 6 point mounting hole on MTD, Cub Cadet, etc. Fusion Blades have Tungsten Carbide "fused" to the edge (see photo) for longer life Please check to make sure the blades you are replacing have a 6 pt. star mounting hole - if they do not, these blades will NOT fit.