| I can't imagine why you would need to use a machine at 4000 rpm. For sanding that speed might be great but for polishing/buffing it's pretty intense. I have seen some real pro's using air polishers at 3000 rpm's but man you gotta know what your doing.
I think my DeWalt Rotary goes up that high but I've only used it at those speeds for removing paint from a panel. Otherwise I'm between 1000 and 1800 rpm's. |