FLYMO ROTARY MOWER KNIFE BLADE FOR SPEEDI-MO 360C , SPEEDI-MO 360VC MODELS MODEL - TECHNICAL SPECIFICATIONS LENGTH 357 mm CENTRAL BORE 8.2 mm OUTER BORE 8.2 mm CENTRAL BORE INDEX 60 mm CODE: 13271779 ORIGINAL CODE: 590 60 51-90 , 590605190 SR