Product review (5 stars): An adapter makes this a nearly perfect tool!
Excellent tool!  Easy to use and does a great job.  Turned a two-hour manual job into 15 minutes!  I did find it hard to get the rods out of my 3/8 inch drill; the size of the metal socket is just a tiny bit too large.  I fabricated an adapter from a bolt that threads into the end of the rod - cut off the head, a few swipes with a file to create three 'faces' on the end that goes into the drill for the chuck to grasp securely, and off to the races!  It would be nice if the manufacturer included such an adapter, or made the socket a wee bit smaller.