Blade for lawn tractor mower mower pro 48s 50s A: 480mm B: 18.5mm C: 8.5mm D: 54mm E: 3mm F: 80mm A: diagonal blade length B: centre hole dia. C: centre hole dia. D: distance between centre holes D: distance between centre holes E: blade thickness F: blade width STIGA Code: R303973 Original code: 1111912901 AT