The Kreg Jig HD (Heavy-Duty) Drill Bit was made specifically for Kreg Joinery and exclusive use with the Kreg Jig HD. It features a 1/4" (6mm) hex shank, Kreg Quick-Change Chuck compatibility and drills a 1/2" (12mm) diameter pocket hole.
For use with the Kreg Jig HD manual pocket-hole jig