CS Unitec 24" Threaded Core Barrel – 3-1/2" diameter Product Guide

This product is a threaded diamond core barrel designed for deep drilling applications in reinforced concrete and masonry. It addresses the challenge of efficiently extracting core samples or creating precise openings where standard drills may not reach or perform adequately due to hardness or depth.

Core barrels like this one are typically mounted onto compatible electric, pneumatic, or hydraulic drill rigs. By threading onto the drill head, they hold diamond segments engineered to cut through tough materials. In rental or field use, such barrels enable contractors and technicians to carry out structural investigations, utility installations, or concrete testing without damaging surrounding materials.

Where This Is Used

• Structural core sampling in reinforced concrete walls, floors, and slabs
• Installation of plumbing, electrical conduit, or mechanical penetrations in masonry
• Deep drilling projects requiring extended barrel lengths for hard-to-reach depths

Key Details

Selection Notes

When selecting a core barrel, ensure the diameter matches the project's hole size and that the barrel length is sufficient for the expected drilling depth. Thread compatibility with the drill rig is critical for a secure fit. Consider the segment size (.187" here) appropriate for the material hardness—diamond segments are industry standard for reinforced concrete and masonry. Verify that the chosen barrel length aligns with rig capacity and drill stand reach, especially for deep cores. The 3-1/2" diameter size is common for installations like conduit sleeves or sampling smaller structural elements.

Barrel Setup and Compatibility Notes

Verify that the core barrel threads correctly onto the drill head adapter of the selected power drill rig. Check rig compatibility to handle barrels up to 24" in length without clearance issues on the drill stand or rig mount. Confirm bit segment wear before use to avoid inefficient cutting and excessive motor strain. For electric, pneumatic, or hydraulic power heads, matching the barrel to the rig's power and torque capabilities helps prevent stalling or damaged threads. After use, clean concrete slurry and debris from the barrel threads and diamond segments to maintain longevity and ensure smooth future setup. Proper storage protects segment edges from damage when not in use.