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 5910-00-840-6217
NSN 5960-00-387-6377
NSN 5985-01-512-2298
NSN 6620-01-262-9489
NSN 5835-00-411-6344
NSN 6145-00-702-0057
NSN 5935-01-497-5290
NSN 7035-01-575-1026
NSN 7035-01-481-2110
NSN 5910-00-334-8756
NSN 5930-01-373-6390
NSN 5999-01-336-9142