Lawn mower blade compatible MTD, Yard Man, Gutbrod Lawn mower blade for lawn mowers Lawn mower models B451 , BA451 , BAE451 , GES45 , HB45 , HB48 LS , YM5018 , 5018 P , YM5518 , 5518 SP Features: Length (mm): 445 Centre bore (mm): star, 4-point Outer bore (mm): 7.5 Centre-to-centre distance (mm): 63.5 Weight: 818 g Code : 13271447 Reference code : 742-04060 MTD , Yard Man , Gutbrod SR m