Tight mortise-and-tenon joinery is an irreplaceable ingredient of many woodworking projects, but cutting tenons accurately can be next to impossible without the aid of a good jig, like this one from Delta. This jig is made with the same quality of castings and precision machining found on Delta's top-of-the-line table saws, giving it the stability and accuracy we desire. We also appreciate its versatility and wide range of adjustment. While the jig is a perfect match for Delta's benchtop and contractor saws, the miter-slot bar can adjust to fit a number of other manufacturers' table saws as well. It can be used with both right- and left-tilt saws, although switching between the two setups does take some time and attention to detail. The jig can be adjusted from 90 to 45 degrees and has adjustable positive stops; of course, we recommend checking your adjustments with a good square and bevel gauge to make sure the stops are set correctly. Getting your tenoning jig set up just right can require some patience, but once done, you'll get a big payoff in accurate tenons, and your projects will have the tightest possible joints. In our experience, few shop accessories will prove as invaluable to your woodworking as this solid tenoning jig from Delta. --Brian Trinen
