I posted when I first came here how we ended up with a CC lawn tractor to cut our grass. Well yesterday I took the blades off to sharpen after two seasons of use and 5 out of 6 of the upturned wings on the ends were completely gone and the sixth was split and almost off. Our lawn was maintained for years by our Gravely and most of the offensive rocks are gone or ground down and we don't hit much at all. Any thoughts as to why these failed like this. They look like they broke off and then break was worn smooth not rough like it was hitting rocks. All I can think of is very cheap steel.