The Easy-Set Pocket-Hole Drill Bit is the same 3⁄8″-diameter stepped bit that comes with Kreg® 300-Series Pocket-Hole Jigs. If you have a worn bit, or if you want to add another bit to your pocket-hole tool collection, this is the perfect choice. This bit works with materials from 1⁄2″ to 11⁄2″ thick, and features engraved markings for 1⁄2″, 3⁄4″, and 11⁄2″ materials to match up with the Easy-Set Stop Collar. A 1⁄4″ hex shank fits standard quick-change chucks. Compatible with all Kreg Pocket-Hole Jigs.