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 6645-00-933-2170
NSN 6685-01-559-3153
NSN 6135-01-202-8113
NSN 5950-01-540-3561
NSN 5935-00-752-8065
NSN 5915-00-054-3046
NSN 5965-01-107-4078
NSN 6620-01-462-5196
NSN 5945-00-377-8103
NSN 5965-00-247-4886
NSN 5990-00-153-0055
NSN 5920-01-424-0745