Option "B" would be to go to Dremel's 'EZ' change system, but those haven't gotten rave reviews either.
http://www.amazon.com/Dremel-EZ407SA-Dru...B007COAAT8
I use a lot more of these though on my flex-shaft.
http://www.amazon.com/Dremel-EZ407SA-Dru...B007COAAT8
I use a lot more of these though on my flex-shaft.
Willie