I would say that anything turning @ 20k+ rpm a little off centre could be a tad bit scary even without a sharp bit in the end of it. I would call the company and let them know what's happening. I have a 8367 King on a table with no problems for about a month now and I have really put it to the test. Maybe mine was made on Wednesday or something. I am starting to get a fair few King tools and haven"t had to send any back for warranty yet so keep us posted on what kind of service you get. Considering it is only a month old they should give you a new one. Preferably a wednesday one. I imagine you must have had some awsome vibration. Maybe you can use the old one as a sander.