1 x universal knife 51 cm for petrol and electric Lawnmower with grass fishing bag Thanks to the supplied adapter discs, it fits most lawnmowers. Suitable for bolts with diameter 10 / 16 / 18 mm. Please select your knife length based on the old knife or measure the diameter of the mower deck. Be sure to choose the knife a little smaller. 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. Further sizes and the shapes cranked or mulch knives can be found in our eBay shop. Description [mm]: Knife Length: 510;   Thickness: 3.5;   A: 21; C x W: 19 x 9.5;  D: 37; E: 75    IMPORTANT! This knife does not fit all lawnmowers! Please ALWAYS compare our knife dimensions to your original knife! Do you also need knife holders for this knife?   It is available at another auction. -> (Shafts - Ø 20 mm / Ø 22.2 mm / Ø 25 mm)        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.