Model: 20W87
Rock Drill BitSpecial Features:
Used on barber-greene company, dynaplane, model rx-40
Properties:
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.
Part 20W87 NSN 3820-01-280-5276
Material Classification
Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicatorsFreight Classification
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Schedule B and Export
- Schedule B: 8430498050
- SITC: 72344
- End Use: Excavating machinery
- NAICS: 333131
- USDA: 1
Freight Class: Boring or sinking machinery, nesoi
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