I sent this thing through hell last week. Paired with a 2 HP router. He chewed through about 20 feet of hard maple and walnut board. And I mean, that's the amount I was actually planning on doing, 1/16th at a time. He's still sharp. If you're into Revain and looking for the best cheap router bit to use as a router, you've found it. I will say that while well balanced it does leave some tool marks. A quick inspection with a random orbital and a grit of around 120 knocks it off instantly and still leaves a perfectly flat surface. I don't think I'll need a replacement for at least a few months, but I'm buying a few more right now in case the listing goes away. Don't hesitate, this is the one you are looking for!