Add a second bit to your Kreg® 300-Series Pocket-Hole Jig, or update your Kreg Jig to make working with 1/2", 3/4", and 1 1/2" 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-, 500o-, and 700-Series Kreg Pocket-Hole Jigs. This bit works with materials from 1⁄2" to 1 1⁄2" thick, and features engraved markings for 1/2", 3/4", 1 1/2", along with the matching Easy-Set Stop Collar. The Material Thickness Gauge allows you to easily determine material thickness (1/2", 3/4", 1 1/2") easily, too. A 1/4" hex-shank fits all standard quick-change chucks. Compatible with all Kreg Pocket-Hole Jigs (excludes Micro and XL).