Kreg Easy-Set Drill Bit with Stop Collar & Gauge/Hex Wrench is designed to enhance your woodworking experience by adding a second bit to your Kreg 300-Series Pocket-Hole Jig or upgrading any Kreg Jig for easier work with 1/2", 3/4", and 1 1/2" materials. This drill bit is the same stepped bit included with the 300-Series Kreg Pocket-Hole Jigs, featuring engraved markings for precise drilling at 1/2", 3/4", and 1 1/2" thicknesses. It comes with a matching Easy-Set Stop Collar and a Material Thickness Gauge that helps you quickly measure material thickness. The 1/4" hex-shank fits all standard quick-change chucks, making it compatible with all Kreg Pocket-Hole Jigs for versatile use. Model Number: