Cutting blade compatible with AL-KO lawn mower mower: RM 40 Li Akku TECHNICAL SPECIFICATIONS Distance between holes in mm: 80,00 Central hole: Round Central hole in mm: 9,00 Width in mm: 50,00 Length in mm: 398,00 Direction of rotation: Clockwise Thickness in mm: 2,00 Ø outer hole in mm: 8,50 code: 122-836 original code: AL-KO 440980 HITACHI 336781 CZ