Since the top shelf products from Precise Bits do not make a collet for the dewalt, this is what I am going to try and use when using 1/8th" bits in my dewalt they seem to be made pretty good and I am going to give them a try.
Hope they work!!
They are made by:
Galaxy Products, Inc
A25-1250 (1/4" collet to use 1/8" bits)
1/8th inch bit holder made of brass. (2 qty of .250" combo diameter shaft).