CS Unitec 12" Threaded Core Barrel – 6" diameter Product Guide

This 12-inch threaded core barrel with a 6-inch diameter is designed for deep drilling applications in reinforced concrete and masonry. It solves the problem of effectively and cleanly drilling core holes through tough materials where precision and durability are required.

Core barrels like this are commonly used in conjunction with electric, pneumatic, or hydraulic drill rigs. The threaded design allows it to attach securely to drill rods or bits, facilitating deep drilling by extending drilling depth with multiple barrels or bits. The diamond segments on the barrel provide enhanced cutting performance on dense, abrasive materials typically found in construction and industrial environments.

Where This Is Used

• Concrete and masonry drilling for structural and utility installations
• Deep core sampling for material testing and analysis
• Infrastructure projects like bridge, tunnel, or building foundations requiring reinforced concrete penetration

Key Details

Selection Notes

When choosing a core barrel for drilling, consider the material hardness, drilling depth, and compatibility with the available drill rig system. The 6" diameter is a common size suitable for larger core samples or opening larger holes for installations. Threaded barrels are often combined to extend drilling reach. Confirm that the drill rig supports the chosen barrel length and thread type to avoid connection issues on site. Diamond segment thickness and style should match the material and drilling method to balance cutting efficiency and longevity. Planning for water or slurry control at the drilling point is important to maintain bit performance and visibility. Check that mounting or stand support is adequate for stable operation during deep drilling.

Drill Setup Notes

Verify that the drill rig’s power system matches the core barrel use, whether electric, pneumatic, or hydraulic. For pneumatic or hydraulic rigs, inspect hose or air-line length and routing for flexibility and to avoid kinks or restrictions. Confirm thread compatibility between core barrels, bits, and drill rods before beginning work. Water supply should be planned to manage slurry and cool the cutting surface, especially on reinforced concrete. After drilling, clean slurry and debris from the barrel and bit connection points to support tool longevity and ease of next assembly.