here is the answer: this method allows to make perfect holder with precision about 0.1mm or better. without using any tools.
(this is my first instructable, i will edit it later)
Step 1: Stuff which you need
1. Some small motor.
2. Epoxy resin or acrylic oxide(cures faster)
3. Syringe (size depends on motor axis and drill diameter)
4. drill bit which you want to attach to motor
Tools you will need:
something flat and sharp ( knife, screwdriver or anything else )