Auger pertains to a rotary drill for soft materials that uses a screw device to penetrate, break and then transport the drilled material. Auger-type devices are popular in soft coal.

To aid penetration and decrease wear on the auger rods, a hard- faced bit is used at the contact between drill and fresh material.

Ref: 122182/2006-09-28

Other Database Pages Exist for this Phrase:
Surface mining equipment (Surface mining equipment - are equipment or ...)
Breading machine (Breading machine is decribed as a horizontal ...)
Surface mining method (Surface mining methods - are the procedures used ...)

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