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.