Original AL-KO ALKO lawn mower blade MODELS: 42B COMFORT 42B, 420B Features : Length (mm): 410 Centre hole (mm): 20 Outer hole (mm): 8 Centre/centre distance (mm): 65 Weight: 711 g For models : AL-KO : Comfort 42 B, Comfort 420 B, 42 B Part No. : 842531435 Original part No. : 531435 531437 AL-KO