CS Unitec 12" Threaded Core Barrel – 7" diameter Product Guide

This product is a 12-inch long threaded core barrel with a 7-inch diameter, designed specifically to be used with diamond core bits for drilling deep holes into reinforced concrete, masonry, and similar materials. It addresses the common challenge of drilling precise, clean cores for structural analysis, pipe and conduit penetration, or material sampling.

This core barrel is threaded to securely attach to compatible drill rigs, whether electric, pneumatic, or hydraulic, supporting deep drilling applications in industrial, construction, and renovation projects. The barrel allows drilling operators to exchange or extend core bit assemblies, depending on depth and diameter requirements, facilitating efficient core removal and reducing downtime.

Where This Is Used

• Construction sites requiring deep core drilling in reinforced concrete
• Masonry drilling for installations of piping, electrical conduits, or anchors
• Concrete testing and material sampling applications

Key Details

Selection Notes

When selecting a core barrel, the primary considerations are matching the diameter to the required core size and ensuring thread compatibility with the drill rig’s arbor or core bit. This 7" diameter barrel suits mid-sized core bits, balancing manageable weight with adequate core size. The 12" length provides sufficient depth extension for many common construction tasks but can be paired with longer barrels for deeper cores. Confirm the drill rig power source and that the barrel’s threading matches the bit and rig to prevent connection failures. If water or slurry is used, plan for proper flow control and cleanup to maintain bit performance and equipment reliability.

Barrel Compatibility and Setup Notes

Threaded barrels require precise matching to the drill rig’s mounting system and bit threads to ensure secure attachment and torque transmission. Inspect threads before use to avoid binding or slippage. Because this barrel is designed for diamond segments with a .250" segment height typical for 7" to 10" diameters, make sure the bit segments are suitable for the material drilled and project conditions. For hydraulic or pneumatic rigs, check hose or air-line routing to maintain unrestricted power delivery to the drill while ensuring operator accessibility. When drilling in wet conditions, prepare slurry collection and disposal plans as needed. After use, clean slurry and debris from the barrel and bit interface to maintain functionality and fit for subsequent jobs.