In one step, this 2-in-1 bit allows you to drill a pilot hole and countersink the perfect sized hole for #6, #8, #10 or #12 screws. HART’s Countersink Bit Set has a titanium coating to reduce heat and provide longer bit life. The ¼” hex shank provides stronger holding power for the chuck of a drill and easy depth adjustment with included hex key. Set Includes #6, #8, #10, #12 and a hex key.
