boorgaten

Boorgaten is a term used to describe cylindrical cavities produced by drilling into a solid material. In engineering and construction, they are essential for creating passages for fasteners, shafts, wires, fluids, or instrumentation. Boreholes can be classified by depth and purpose, with common types including through holes that pass completely through a workpiece and blind holes that terminate at a specified depth. They may also be unthreaded, tapped for threads, or prepared with features such as countersinks or counterbores to accommodate fasteners or seating surfaces.

Manufacturing typically starts with drilling, often followed by reaming for tighter tolerances and smoother finishes, boring for larger or more precise diameters, and tapping to create internal threads. Countersinking provides a conical seat for flat-head screws, while counterboring creates a flat seating surface for truss or hex bolts. Fit between a hole and its mating part is governed by tolerances, commonly specified in ISO hole and shaft systems (for example H7 for holes). The resulting clearance or interference determines the assembly fit.

Quality and measurement focus on dimensional accuracy, straightness, and concentricity. Common inspection tools include bore gauges, plug gauges, micrometers, and coordinate measuring machines. Deburring and surface finish control are important to ensure reliable assembly and avoid damage.

Geotechnical and geological contexts use the term borehole to describe drilled channels in soil or rock, often for sampling, monitoring, or resource extraction. These boreholes vary widely in diameter and depth and require geological planning, casing where necessary, and attention to safety and environmental impact.

Overall, boorgaten serves as a fundamental feature in mechanical design and subsurface investigations, enabling assembly, function, and data collection across disciplines.