Blade for lawn tractor lawn mower ground master with 36" two-blade deck with 52" three-blade deck A: 458mm B: 12mm C : D: E: 5mm F: 64 mm A: blade diagonal length B: centre hole dia. C: positioning hole dia. D: positioning hole dia. E: blade thickness F: blade width TORO Code: R301028 Original code: 270990 AT