"I bought this blade as it was the only course cutting blade available in 180mm diameter. Despite it being listed under the course cut category, I was very surprised at the clean finish it left when ripping my American white oak. It required very little planing or sanding. The blade performed well and only time will tell how long it lasts. My only complaint was with the reducing rings supplied......machined to a very poor tolerance resulting in the ring being slightly thicker than the blade itself which prevented my saw from being able to be tightened properly. I had to file the reducing ring down slightly before I could proceed but once that was done it was fine."