MULCHING BLADE KNIFE LEFT ROTATION FOR ROTARY MOWER, TOWER MOWER CASTELGARDEN , STIGA , GGP , ALPINA FOR MODELS TC92 , MAGNUM480 , TESTAROSSA484 , TREND480 , TREND484 MODEL - TECHNICAL SPECIFICATIONS LENGTH 460 mm CENTRAL BORE 18 mm OUTSIDE BORE 8. 5 mm CENTRAL HOLE INDEX 65 mm CODE: 13271412 ORIGINAL CODE: 181004346/3 81004346/3 1111-9741-01 SR