The Kramp 405575 is a genuine standard mower blade designed for MTD lawn mowers with 46-inch cutting decks. This right-rotating blade features a length of 413 mm, a width of 57 mm, and a thickness of 3 mm. It has a 10 mm center bore and 8.5 mm outer bores with a 63.5 mm hole distance, ensuring precise fitment and efficient cutting performance. Replaces MTD OEM part numbers 742-0542, 742-0542A, 742-0542B, 942-0542, 942-0542A, and 942-0542B.