I used to have problems with spiral blades on my Delta saw and it was because after you clamp the bottom of the blade, the top of the blade most always is perpendicular to the clamp. That is what creates problems. With the new flat end blades, you don't have that. My new DeWalt is the screw type clamp & it will break it right off, if you tighten it too much.Try not to tighted it too much. Just trial & error is how I learned. I do get a lot of good advice here though, it's great. Good sawing. Goofytoo |