Used for:
* Holes for cast in-situ foundation piers
* Mineral sampling
* Access holes
Advantages:
* Produces clean dry holes
* Drills large diameter holes.
Disadvantages:
* Water in hole washes cutting from the auger flights
Bucket augers have similar applications to those of the short flight augers.
Advantages:
* Drills larger holes
* Undetcuts casing
* Drills below water and operates in mud filled holes
* Large rotary drive provides torque to drill harder materials
Disadvantage:
* Depth capacity is limited
A feature of an auger type drilling machine is the high torque rating of its rotary drive. High torque enables "plough" type teeth on the auger to cut into and lift very tightly packed soils and even some weathered rocks.