KJD KREG STEP DRILL BIT | Add a second bit to your Kreg 300 Series pocket-hole jig or update any Kreg Jig to make building wood projects with boards and plywood even easier. The Kreg easy-set pocket-hole drill bit with step collar and gauge/wrench is the same stepped bit that comes with 300 Series Kreg pocket hole jigs. This drill bit works with materials from 1/2 in to 1-1/2 in thick and features engraved markings for 1/2 in, 3/4 in, 1-1/2 in, along with the matching easy-set stop collar. The material thickness gauge allows you to easily determine material thickness from 1/2 in to 1-1/2 in easily, too. A 1/4 in hex-shank fits all standard quick-change chucks. Compatible with all Kreg pocket-hole jigs.