WEIFANG FENGYILAI HARVESTER FITTINGS CO.,LTD Research Report Of Combine Harvester Knife Sections Combine harvester knife section size A ---- width (75.8mm < A < 76mm) B ---- height (80mm < B < 90mm) C ---- hole distance ( 51mm, 51.25mm, 51.5mm, 52mm, 52.25mm, 52.5mm) D ---- hole diameter (5mm, 5.5mm