ROTATION BLADE KNIFE LEFT FOR ROTARY MOWER ROTARY MOWER CUTTERS CASTELGARDEN , STIGA , GGP , ALPINA FOR MODELS MP84 , P84HYDRO MODEL - TECHNICAL SPECIFICATIONS LENGTH 420 mm CENTRAL BORE 18 mm EXTERNAL BORE 8.5 mm CENTRAL BORE INDEX 65 mm CODE: 13286952 ORIGINAL CODE: 182004359/0 82004359/0 SR