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 6150-01-183-3134
NSN 5925-01-018-3041
NSN 5950-00-948-0525
NSN 5990-01-288-7393
NSN 5925-01-510-4579
NSN 2925-01-513-9114
NSN 6240-01-257-1052
NSN 6130-01-538-3612
NSN 6610-00-267-9944
NSN 5998-01-046-7424
NSN 6645-01-143-7838
NSN 6130-00-058-6489