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2. 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]

3. Earth auger - Wikipedia

   en.wikipedia.org/wiki/Earth_Auger

   A post-hole auger. An earth auger, earth drill, or post-hole auger is a drilling tool used for making holes in the ground. [1] It typically consists of a rotating vertical metal rod or pipe with one or more blades attached at the lower end, that cut or scrape the soil.

4. Post hole digger - Wikipedia

   en.wikipedia.org/wiki/Post_hole_digger

   A post hole clam-shell digger, also called post hole pincer or simply post hole digger, is a tool consisting of two articulated shovel-like blades, forming an incomplete hollow cylinder about a foot long and a few inches wide, with two long handles that can put the blades in an "open" (parallel) position or a "closed" (convergent) position.

5. Drilling rig - Wikipedia

   en.wikipedia.org/wiki/Drilling_rig

   As the auger rotates, it brings excavated material to the surface, which helps keep the borehole open and prevents it from collapsing. Augers can be mounted on trucks or other machines and come in different lengths and diameters. Auger drilling is used in many fields, including construction, environmental studies, and geotechnical ...

6. Excavator - Wikipedia

   en.wikipedia.org/wiki/Excavator

   The stick length is optional depending whether reach (longer stick) or break-out power (shorter stick) is required. Most common is mono stick but there are also, for example, telescopic sticks. The largest form ever of an excavator, the dragline excavator , eliminated the dipper in favor of a line and winch .

7. Wood auger - Wikipedia

   en.wikipedia.org/wiki/Wood_auger

   Study of a man using an auger, from The Seven Sorrows of the Virgin, by Albrecht Dürer, c. 1496. The classical design has a helical screw blade winding around the bottom end of the shaft. The lower edge of the blade is sharpened and scrapes the wood; the rest of the blade lifts the chips out of the way.