Try buying a replacement set of motor brushes. <P>On the sides of the Dremel, there are 2 plastic screw slots opposite each other. Take a coin and unscrew them and inspect the brushes on the ends ...

What is the going on, has this happend to anyone? Could it be that the brushes have warn down? It happend right in the middle of cutting. We lubed the bearing but its making this wierd ass noise ...