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.
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