How about
$8000 worth of rotary tool?
I saw this while searching for "brushless motor". 600W output @ 40K RPM isn't too bad. Well worth all that money... Not to mention the 5000 hour MBTF, double ceramic bearings on BOTH ends of the motor, forced air cooling, SUS-416 SS construction, and my favorite- 1 uM spindle accuracy! Drool...