After some reasearch it seems an actual face mill is out of the question for an er20. What's the next best thing? I'm already getting great results with just a quarter inch endmill, but I wouldn't mind improving it with a wider cut and better use of the tool rather than dulling just the tip. I was gonna order a half inch stub end mill to have specifically for facing but I figured I would ask first. Are there better options? Larger than half inch cut? Smoother finish than and end mill would give? Maybe a flycutter of some sort? The 6k minimum rpm is obviously also a limiting factor with larger diameter. If I am limited to half inch max cut, would an insert tool make more sense? If it gave equal or better surface as an end mill, I imagine replacing inserts is more economical. Open to suggestions