A diamond core drill is a drilling tool designed to extract cylindrical core samples from concrete structures.

Concrete strength testing

Quality assessment of bridges, tunnels, and highways

Structural analysis of old or damaged buildings

Precision sampling after rebar detection in construction

Diamond core drills can cut through stone, concrete, slate, rock, brick, asphalt, and masonry.

The maximum drilling depth depends on the machine design and drill bit length. Most models can drill between 100mm to 300mm in depth.

Selection should be based on the strength and thickness of the concrete, rebar distribution, and the required core diameter and depth. Choosing the right power, torque, and drilling capacity is crucial for optimal performance.

Avoid drilling into high-stress areas, weak structural sections, joints, or edges where stress distribution is complex. Ideally, core samples should be taken from the central portion of the structure. Use a rebar locator to avoid embedded steel, fixtures, and pipelines, and select areas that accurately represent concrete strength and quality.

After each use, remove all dust and debris from the drill bit and machine. Check for loose components and tighten them if necessary. Regular lubrication of moving parts is recommended. Store the drill in a dry, clean environment to prevent rust and damage.

Cause: Incorrect drill bit placement or improper setup.

Solution: Before drilling, ensure the bit is properly positioned and secured. Use a laser guide or marker for improved accuracy. During drilling, periodically check alignment to keep the bit on track.