8ft /2.3mtr middle segment. This high quality knife segment is for repair of cutting knife assemblies on headers between 16ft / 4.8mtr and 35ft / 10.5mtr. The knife segment comes complete with 6mm bolted top serrated course sections. For John Deere 600R European series headers including 616r, 618r, 620r, 622r, 625r, 630r and 635r . Manufactured in Italy by 'APB' - Agri Parts Bologna and 100% interchangeable with the original. OEM Code AH168892 (18AP009985).