Edit 28/12/13:
Today I wanted a simple hole with wood drill 3mm drilling, but it broke after the third hole.
Strange was that he has only badly bent and is very easy to read straighten. He then broke but not at the expected location to but much further away from the crooked place. Why I go out of a material error or a poor material.
This product I would get no more time!
Two stars only because everything is inside you need. (But unusable unfortunately)
With best regards
AW