This self-centering doweling jig comes with SIX removable screw-in bushings for extra hole pattern. Extra sizes are 1/4", 5/16" and 3/8" (2 of each size.) This will permit you to drill two holes parallel to one another for double dowel applications. This is on a 3/4" center-to-center space. The jig does not have to be moved to do this and is more accurate and convenient than other types of jigs.
- Works with material up to 2" thick