Mulching feature. Our blades are individually straightened and hardened to provide a consistent, cleaner cut and increase blade longevity. Requires 2 blades for 42" cut. 335-707, 355-707. 490-110-M108, 490-110-M115, 742-04087, 742-04308, 742-04312, 742-04410, 742-0616A, 742-0656, 742-4360, 7420616, 942-04087, 942-04308, 942-04308-X, 942-04312, 942-04312-X, 942-04360-0684, 942-04410, 942-04410-0684, 942-0616, 942-0616-X, 942-0616A, 942-0656, 942-4360, GW-7420616, OEM-742-04308, OEM-742-0616.
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