The next item is a drill jig that allows me to drill perfectly aligned holes in tubing and/or bar stock. It is very similar to the tubing jig shown above yet it helps perform a different task. I also went about attaching the angle iron point-to-point in a different manner this time. Here, I used a third piece of angle iron and my vice to align and hold the pieces square. The blackened edges shown here are the pieces to be attached and the unmarked piece is the one used for alignment.