I was given a bunch of saw chains for some bars I won on Ebay and the chains have Husky printed on them but the raker has this big bend in it. I've never seen any saw chain like this before and I'm wondering if these are any good. Every saw chain I've bought (I prefer Stihl chain) has the raker going straight up and down. These rakers don't even look like they can be filed. I'll try to get a picture but I'm guessing some experts here could chime in and educate me on whether these are decent chains and what the function is of the very rounded over raker. Tks.