Hammer bit hole opener from 6.000in. To 10.000in. Diameter for strike force 6 d.H.11.
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 6610-01-112-0447
NSN 2925-01-448-2880
NSN 5996-01-084-6930
NSN 6610-01-188-8163
NSN 5920-01-058-3066
NSN 6650-00-197-7563
NSN 5930-01-005-5782
NSN 5975-01-066-8950
NSN 5835-01-054-2094
NSN 6110-00-166-7865
NSN 5990-00-965-0495
NSN 6130-01-628-5099