Core Drills and Their Uses in Construction

There are many different tools in the construction industry used to cut, drill, plaster, and hold in place. But one tool stands head and shoulders above the rest, a core holes drill, the masonry equivalent of a hole saw. Designed in the 1860s, this workhorse can cut perfectly round holes of any size in concrete and other materials with one setup, and does so very quietly, without disturbing nearby structures.

Workers use core drilling on construction sites for a wide variety of reasons. The efficiency, accuracy, and stability of the process allow them to analyze the material, examine its strength, present deterioration and capacity, and determine its suitability for various applications.

Understanding Core Holes: What You Need to Know

In some cases, a sample of the material is required for further examination or to verify a particular test result. A core sample can also be useful in determining the best placement for new electrical conduits and cables, plumbing piping, reinforcement (starter bars, hold-down bolts, and storage units) or other structural changes in existing buildings.

Using a core drill in construction requires care and attention to detail. A core bit must be selected based on the material, and the drill must be carefully set up to avoid over-drilling or damaging the surrounding structure. It is advisable to use wire detectors or stud finders before using a core drill, and always stop drilling when the bit teeth touch the wall’s surface. Using the correct drill accessories, like retrieval tongs and extractors, ensures an intact sample for further testing or inspection.