Blade for lawn tractor mower RIDER HN5220K new models with 42" cutter deck RIGHT ROTATION BLADE A: 540mm B: 6 points C: D: E: 3.5mm F: 79mm A: diagonal blade length B: centre hole dia. C: positioning hole dia. D: positioning hole dia. E: blade thickness F: blade width MTD Code: R303962 Original code: 7420670 74204024 74204080 94204080 AT