When using an auger to drill the soil it is vitally important to pay attention to the drill bit, not solo to the quality of the tool, but it is also necessary to pay attention to its measurements.
The reason is simple: this aspect is crucial for the placement of light poles, planting trees, the cultivation of vineyards or any work you do with this type of machine is with the desired result.
Specifically, this auger drill bit is 100mm, being able to make smaller holes getting a great precision thanks to its measures.