Post #251140 by Paipo on Mon, Aug 28, 2006 2:33 AM

Seeing as one of my mistakes prompted this bump, I'll add one of my golden rules which I stupidly ignored today in through impatience and not taking the time to think though my process.
When using burrs of any type in your dremel/foredom/rotary handpiece of choice, avoid the temptation to overextend the burr to get deeper into a piece. Make sure at least half if not 3/4 of the shank is pushed down into the collet. If not, the burr will almost certainly bend where it meets the collet, and you will have a miniature flail spinning at tens of thousands of RPM that will make you lose control of the handpiece and smash anything it comes in contact with. Luckily for me it was a piece of stone today and not my fingers (I've done it before and should know better).