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 4140-00-378-3399
NSN 5905-01-050-7448
NSN 5835-01-544-9670
NSN 5996-00-389-7404
NSN 5990-01-272-4091
NSN 6220-00-361-8338
NSN 5990-00-316-4707
NSN 5945-00-570-0136
NSN 6135-01-408-9244
NSN 6135-01-231-4809
NSN 5895-01-325-2242
NSN 5910-00-928-5634