Blade for lawn mower mower mower formula A diagonal blade length: 490mm B Ø centre hole: 21mm C Ø positioning holes: D centre distance of positioning holes: E blade thickness: 3. F blade width: 57mm EFCO Part No.: R301689 Original part No.: 91742E701 ALSO COMPATIBLE WITH MURRAY FROM 1989 TO 1996 FOR 38" R.o: 91742E701 ALSO COMPATIBLE WITH OLEOMAC POLO R.O: 917442E701 AT