Joe, I think there was some mention in the instructions about use with the Beall System on a 1750 rpm motor? I used the second speed from the slowest on my Lathe, and it seemed to be just about right. It did the job, and the work was easy to control. I would think that too fast would add excess heat, which is not necessary. Heck, even on that speed it still throws lint and compound all over the place..........I'm not sure I want to see what it does at a faster speed. I've heard of Cotton Mouth before, but now I know what Cotton Nose it like!