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 5965-00-246-5612
NSN 6220-00-925-7470
NSN 6620-01-237-5603
NSN 5935-01-304-2253
NSN 5960-00-600-1454
NSN 5985-01-152-4173
NSN 6130-01-229-2473
NSN 6135-00-309-0074
NSN 6220-00-440-6596
NSN 5950-01-150-6455
NSN 5925-01-412-3733
NSN 5895-00-269-3848