National Item Identification Number
01-280-5276
012805276
3820-01-280-5276
3820012805276
National Stock Number
Item Name
BIT,ROCK DRILL
Federal Supply Class
3820
Description
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.
Commercial and Government Entity Code (Supplier Data)
Reference Numbers (Part Numbers)
20W87
Required Categories
MATERIAL
SPECIAL FEATURES
Required Description
STEEL
USED ON BARBER-GREENE COMPANY,DYNAPLANE,MODEL RX-40