The bit was not attached and so I haven't been able to use it because it requires tools to put the bit into the dremel.  A waste of my time.  It should have come ready to go or with the tool needed to make it work.  You need a very tiny flat head screw driver.  Almost like the ines in the eyeglass repair kit.  Which I don't have.  Still sitting on the shelf in the packaging for the last 2 months.