For chucks with 1/2″-20 female threaded back.
Make sure this fits by entering your model number.
1/2″ Straight Shank
Allows you to add a 1/2″ straight shank to drill chucks with 1/2″-20 threaded back.
Shank may be fully cylindrical, or have a recessed portion.
Photo is for general reference only, details such as size of shoulder may vary.