KNIFE BLADE FOR EINHELL LAWN MOWER MOWERS FOR MODELS RG-PM51S B S , RG-PM51VS B S , RG-PM51/1S B S , GE-PM51VS B S , BG-PM51SHW , BG-PM51SHW-E , BG-PM51SHW SE , BG-PM51M-SE , BG-PM51 , BG-PM51S MODEL - TECHNICAL SPECIFICATIONS LENGTH 509. 5 mm CENTRAL BORE 16.2 mm OUTER BORE 8.9/6.8 mm CENTRAL BORE INDEX 47.5 mm CODE: 13286745 ORIGINAL CODE: 3405526 SR