2 x 53.5 cm (21") knives Cut width 1070 mm (42") Suitable for: MTD (1999 - 2017) 180/107 T 200/107 T AG6145 8155 H165 H180 AG5165 Efco Bolens Gutbrod Columbia Oleo-Mac Wolf Yard Man and others with "6 arm" stars Replaced.: 742-0674 The knife is curved to throw away the grass until the basket is full.  The knife geometry guarantees effective mowing even with side ejection mowers. No original part - the original item number is for orientation only. You will find other sizes and shapes in our eBay store. Description [mm]: L: 535;   ZB: *; AL: 9; AB: 63; B: 74;   Thickness: 3.7   Why our knives? The knives are made of top quality certified steel (50CrV4). Sharp, hardened, balanced (45 HRC) and straight bent, our knives guarantee fine mowing and a long time of use (minimum 3 seasons). Thank you.