Blade for lawn tractor lawn mower White 38" Columbia 110" A: 483mm B: 10.5mm C: 8mm D: 64mm E: 4mm F: 49mm A: Diagonal blade length B: Centre hole dia. C: Centre hole dia. D: Centre hole dia. D: Centre hole dia. E: Blade thickness F: Blade width MTD Code: R301006 Original Code: 7420122 320007447 AT