The Kreg® Easy-Set Pocket-Hole Drill Bit is the same stepped bit that comes with Kreg® 300-Series Pocket-Hole Jigs. This bit works with materials from 1⁄2" to 1-1⁄2" thickness, and features engraved markings at 1/2", 3/4", and 1-1/2" to match the Easy-Set Stop Collar. A ¼" hex shank fits all standard quick-change chucks. Compatible with all Kreg Pocket-Hole Jigs.