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 5960-01-172-2088
NSN 7035-00-541-8516
NSN 6110-00-260-0130
NSN 5996-01-367-2081
NSN 5996-01-622-6420
NSN 5835-00-228-9082
NSN 5965-01-453-7504
NSN 5915-01-258-5799
NSN 5835-00-021-5913
NSN 6220-00-199-9401
NSN 6110-01-028-5500
NSN 5990-01-167-7043