Add a second bit to your Kreg 300-Series Pocket-Hole Jig or update any Kreg Jig to make working with 1/2 in., 3/4 in., 1-1/2 in. materials even easier. The Kreg Easy-Set Pocket-Hole Drill Bit with Step Collar and Gauge/Wrench is the same stepped bit that comes with 300-Series Kreg Pocket-Hole Jigs. This bit features engraved markings for 1/2 in., 3/4 in., 1-1/2 in., along with the matching Easy-Set Stop Collar. Material Thickness Gauge allows you to easily determine material thickness (1/2 in., 3/4 in., 1-1/2 in. ) easily, too. A 1/4 in. hex-shank fits all standard quick-change chucks. Compatible with all Kreg Pocket-Hole Jigs (excludes Micro and XL). Material: Steel.