BLADE KNIFE FOR FLYMO ROTARY MOWER ROTARY CUTTERS FOR MODELS MINIMUM E 25 , MINIMUM DUO E 30 , E 400 MODEL - TECHNICAL SPECIFICATIONS LENGTH 75 mm CENTRAL BORE 8.5 mm EXTERNAL BORE - mm INDEX OF CENTRAL HOLES 6 mm CODE: 13271510 ORIGINAL CODE: 513 78 51-72 , 513785172 , 513 78 51-71 , 513785171 , 513 78 51-00 , 513785100 SR