Attachment method 4.5 in api reg pin threads, 5 thds per in., 3 in. Taper per foot, right hand, medium
A detachable, end cutting drilling tool with an internal thread or tapered socket at one end for attaching a rock drill rod. The opposite end is designed with two or more cutting edges for drilling into rock formation by impact and a slight rotary motion. It contains a hole or holes in the cutting for the purpose of conducting air or water to clear the hole being drilled. It is used with powered drifter drills, sinker drills, and the like.
Classification: Boring or sinking machinery, nesoi
NSN 6645-01-144-8627
NSN 5935-00-227-1110
NSN 6645-00-513-6516
NSN 6130-01-433-9078
NSN 7035-01-428-2336
NSN 7035-00-763-6180
NSN 5998-01-010-2038
NSN 6650-01-553-1853
NSN 5855-01-093-8202
NSN 5915-00-852-1256
NSN 5920-00-611-6728
NSN 5945-00-673-3964