Driving this thing by the other end will not work, it's a common comment, please read bellow my copy&paste from answer to one of those comments:
"Unfortunatelly, I didn't design any part to make the connection in the other end, anyway, it wouldn't work or at least not for a long time. Most probably the drill would not have torque enough to make it move, if there was enough torque the 3D printed parts would either break or melt in just a few seconds. Thanks for watching!"
The STL files to print this part are available at: http://www.thingiverse.com/thing:23030
