After building a new auxiliary table for my drill press, I wanted to ensure that the table was exactly perpendicular to the drill press spindle. Since I already owned a dial indicator, I came up with the simple jig you see below. This jig allows me to adjust my drill press table to a very precise tolerance. straightforward operation. To use the jig, insert the steel rod into the drill chuck and tighten it in place. Adjust the table height so that the indicator needle touches the table surface. Check the reading on the dial at two positions that are 180° from each other. The table can then be adjusted until the readings are the same. Be sure to check several locations front-to-back and side-to-side to ensure accurate adjustments. The jig is nothing more than a piece of stock with the dial indicator attached to one end and a steel rod inserted in the other end.