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 ½" to 1½" thick, and features engraved markings for ½", ¾", and 1½" materials to match up with the Easy-Set Stop Collar. A ¼" hex shank fits standard quick-change chucks. Compatible with all Kreg Pocket-Hole Jigs.