18" Overall Length . Because of the inaccessibility or the extreme depth of a hole, it is found that even long series drills are not long enough. The drilling of such holes generally requires the use of an Extra Length Drill. The drills are made with a general purpose flute design which will perform satisfactorily under the widest range of operating conditions and materials. Packaging Quantity Single pack. Extra Length Drills   |   Import   |   High Speed Steel   |   18" Overall Length   Related Categories • Fractional Sizes