A straight metal rod with a shank at one end to fit the drilling machine chuck, and the opposite end externally threaded or tapered for attachment by a coupling to a threaded drill rod section. The shank has a passageway throughout its entire length for conducting air or water to clear the hole being drilled, and a packing seal in the upper end of the shank, overall length must be less than 15 inches (381 mm).
Classification: Parts of boring or sinking machinery of subheading 8430.41 or 8430.49,nesoi
NSN 5925-01-333-8850
NSN 5910-00-324-3201
NSN 5910-01-633-9963
NSN 6620-00-987-3673
NSN 4140-01-579-3113
NSN 6150-01-106-2533
NSN 5835-00-222-3956
NSN 6240-01-316-9882
NSN 6135-00-983-9187
NSN 5990-01-632-0969
NSN 6150-01-542-7483
NSN 5935-01-068-3637