7" Overall Length Drill Extension. Used to extend drill bits, pilot cutters, etc. 1/4" shank on one end for air or electric drill and 1/4"X28 internal thread.
Used to extend threaded drill bits, pilot cutters, or any other cutter with a 1/4-28 thread. Has a 1/4" Hex Drive on the shank end to fit a drill or screwdriver, and a 1/4-28 internal (female) thread at the other. 10" extension length.