as a guide, a poor answer to my question would be - "well you just unmount the blades and take them to some place and pay them $79.99 and then you remount the blades and it's almost impossible and you may as well just buy a new mower, but there you go.", while a good answer would be - "take the whole mower to this place and give them $10 and wait 5 minutes and that's it."