6.500 in. Drop center; button bit; hammer bit
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 5920-00-518-1793
NSN 5950-01-454-4447
NSN 6610-00-170-6715
NSN 5905-00-005-3545
NSN 5920-01-450-5094
NSN 5835-00-659-0959
NSN 6130-00-371-0956
NSN 5935-00-012-4200
NSN 5975-01-449-3950
NSN 5930-00-595-9276
NSN 6135-00-152-8729
NSN 6110-01-501-7366