Chuckless Dremel?

Submitted to Product Talk

I have the 4300 Dremel and have forgotten how to put the bits on. I look at the instructions, but I am still confused. I sused to use this all the time, but have not picked it up in about 10 years. Now, I find out there is a chuckless Dremel and I'm thinking of sell my 4300 and all the bits and getting the easier to work one. I need help.