The second blade I bought is the "Powertec" brand, the first was used once and all the teeth were gone, mine Blame that second one was small and couldn't get to my saw. The company is clearly making cheap products that aren't really designed for real-time performance, as not even a single blade will fit. Don't buy Powertec blades, buy something worth your money as brown and sharp even if you pay 4x the product value.