A homemade two-bladed drill performance is that ten minutes in the soil it is possible to drill a hole with a diameter of approximately 150 mm to a depth of 1 m. the Column under the fence comes in a pit close to the walls, you don’t even have to tamp the ground after installation.
For drilling deeper holes can recommend another improvised tool of the screw from a scrapped combine harvester and a screw of the segments of steel tubes. About performance, this drill can be illustrated by the case of ten wells with a diameter of 130 mm, which armed them diggers manage about two hours of continuous operation.
Auger for post holes fence:
1 — steel rod (scrap); 2 — welded knife-polydisk; 3 — beam-arm; L is the depth of drilled holes
Drill long deep holes:
1 — screw (deducted from the combine harvester); 2 — the knife (from the clutches of the cultivator); 3 — coupler; 4 — insert; 5 — crossbar-driver
Of course, the auger is subject to modernization. It is cut to 420-mm length, the lower end of the shaft attach a sharpened helical form. Then, stepping up from the tip, 90 mm, welded at an angle of 25° to the horizon two 55-mm knife, made from a pair of worn-down hoes.
– Drill head is welded. It is a common inch water and gas supply tube coupling into which is screwed a pipe with a weld 1250-mm beam is a collar on the free end of the thread.
As insertion of such a drill in the ground, the tool is built up of two-meter tubular inserts, each of which has at one end threaded and the other on the clutch. At known skill and minimal delays to dock pipe bore widening eyes.
N. BULIK, Khmelnitsky region, Ukraine