Pilotborrning

Pilotborrning is a construction technique used to create a small initial hole, or pilot hole, before performing a larger drilling operation. This pilot hole serves as a guide for the main drill bit, ensuring accuracy and preventing deviation, especially in challenging ground conditions or when drilling through multiple layers. The diameter of the pilot hole is significantly smaller than the final desired diameter of the main bore.

The primary purpose of pilotborrning is to improve the precision of the subsequent larger drilling process. By establishing a clear and accurate pathway, it minimizes the risk of the main drill bit wandering off course, which can lead to significant problems such as misalignment, structural damage, or the need for costly rework. This is particularly important in applications like directional drilling for underground utilities, where precise navigation is critical.

Pilotborrning is also beneficial in situations where the material being drilled is inconsistent or contains obstacles. The pilot hole can help identify and navigate around such issues before the more substantial and potentially more expensive main drill bit encounters them. This can reduce wear and tear on the larger equipment and prevent drilling failures. The technique is a fundamental step in many drilling operations, contributing to efficiency and the overall success of the project.