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 5999-01-340-3425
NSN 5905-01-499-2509
NSN 6220-01-587-5618
NSN 5855-01-532-1751
NSN 6240-00-933-7641
NSN 5925-01-024-5495
NSN 6610-01-586-5221
NSN 5965-01-250-3214
NSN 5935-01-463-6689
NSN 6130-01-632-9653
NSN 5920-01-492-4462
NSN 5930-01-398-9576