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2. Earth auger - Wikipedia

   en.wikipedia.org/wiki/Earth_Auger

   A skid-steer loader with an earth auger attachment. Construction drill auger. Hand-powered earth augers are typically used to plant saplings and trees or to set up posts for fences or other ends. [7] Large mechanized earth augers, called drilling rigs, are used to make holes for piles destined to be deep foundations or retaining wall. [citation ...

3. Boring machine (carpentry) - Wikipedia

   en.wikipedia.org/wiki/Boring_machine_(carpentry)

   Boring machines use twist auger bits usually ranging in size from 7 ⁄ 8 inch to 2 inches. The machines hold the bit perpendicular (square) to the face of the timber and are operated with both hands while the operator sits on the base to keep the machine from moving. Some machines can be set at an angle.

4. Drilling rig - Wikipedia

   en.wikipedia.org/wiki/Drilling_rig

   There are different auger drilling methods, including hand auger drilling and hollow stem auger drilling. Hand auger drilling is a cost-effective method that's often used in areas with shallow soil, but it can be time-consuming and labor-intensive. Hollow stem auger drilling uses a large, hollow auger that removes soil as it drills.

5. Tractor PTO auger - Wikipedia

   en.wikipedia.org/wiki/Tractor_PTO_auger

   This in turn will provide power to the Tractor PTO Auger's gearbox. Most modern [1] Tractor PTO Auger gearboxes come standard with a shear bolt to protect the gear drive if the auger encounters an obstruction such as rock during drilling a hole. Tractor PTO Augers connect via 3 point hitch to subcompact tractors and mid-size tractors. [2]

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   The search engine that helps you find exactly what you're looking for. Find the most relevant information, video, images, and answers from all across the Web.

7. Tunnel boring machine - Wikipedia

   en.wikipedia.org/wiki/Tunnel_boring_machine

   The first successful tunnelling shield was developed by Sir Marc Isambard Brunel to excavate the Thames Tunnel in 1825. However, this was only the invention of the shield concept and did not involve the construction of a complete tunnel boring machine, the digging still having to be accomplished by the then standard excavation methods.