On Monday, August 12, 2019 at 9:44:05 PM UTC-7, Pradipta Shome wrote:
replying to Jay, Pradipta Shome wrote:
Can someone explain how to affix the drill to the Portalign tool.

Most hand drills have 3/8"-24tpi threaded shank, and the three-jaw chuck
is threaded on. Open the chuck jaws fully, and reach down with a screwdriver,
and remove the retaining screw (usually LEFT HAND THREAD and Philips #2 fits)
then the chuck (RIGHT HAND thread) can be unscrewed. If it doesn't unthread easily, chuck up a hex
key and strike with mallet to break the threads loose.

The Portalign shaft screws on in place of the chuck, and the other end of the shaft
takes the three-jaw chuck.