I actually picked this up at my local tool store. I needed a blade to rip some plywood cleanly and the price was right. I thought that with this blade I could avoid the hassle of my corded circular saw.As I was purchasing this, the salesman raised his eyebrows and expressed some doubt about the blade. He was right.The thing ended up being virtually useless. The cuts took forever and the saw screeched like a stuck pig as I tried to push it through the plywood.To be fair, I guess it is possible that the problem resides with my particular PC cordless circular saw (it's refurbished) and that the problem is not the blade. However, given that the person I bought the blade from had expressed doubts, I think it's the blade.