Add a second bit to the Kreg 300-Series Pocket-Hole Jig, or update any Kreg Jig to make working with 1/2 In., 3/4 In., and 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 works with materials from 1/2 In. to 1-1/2 In. thick, and features engraved markings for 1/2 In., 3/4 In., 1-1/2 In., along with the matching Easy-Set Stop Collar. The 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.