Earth auger (tool)
An earth auger is a tool used to dig holes in the ground. It drills round holes and is particularly suitable for digging holes without a pit inclination, e.g. B. for setting fence posts .
construction
An auger is attached to a vertical rod. At the front there is a conical pre-drill, above which there is a spiral disk or two inclined semicircular plates with cutting edges based on the principle of the Archimedean snail .
Working method
Earth drills can be driven by hand or by machine, for example via a tractor PTO shaft or a hydraulic system , each of which can be driven by a diesel engine. An auger is driven into the ground by pressure from above and a rotary movement until the auger is completely covered with earth. The pre-drill loosens the soil so that drilling is made easier. If the drill is too short, the drill rod can be extended as required, depending on the type.
Hand auger with spiral
Wheel loader with auger
small tractor with earth auger
Big drill rig
Individual evidence
- ↑ DLG-Test.de, test of a hand-held device with pictures (PDF; 460 kB)
- ↑ Description of the drilling system ( Memento of the original from October 21, 2012 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. (PDF; 103 kB) at RFC Systems
