The 101 T2 double tube core barrel from Technidrill is a thin-wall system engineered to preserve core quality during drilling. Its inner tube mounted on bearings provides improved guidance and reduces stress on the sample, enabling high-quality core recovery even in delicate ground. Recommended for geotechnical investigations where sample conservation is essential, it performs well in laboratory testing campaigns and on-site quality control programs.

Specifications – T2 double core barrel

• Type: double core barrel, thin-wall
• Model outside diameter: 101 mm
• Available T2 range: 46 mm to 101 mm
• Inner tube on bearings: optimized guidance for the core

Advantages of the 101 T2 double tube core barrel

• Better sample preservation: the double-wall arrangement protects the core.
• Low cutting surface: reduces drilling effort and helps lower bit/crown costs.
• Efficient penetration: maintains a high rate in cohesive ground.
• Larger core size: compared with a T6 core barrel of the same outside diameter.

Why choose a double tube core barrel for soil investigation?

In soil investigation, core quality drives the reliability of test results. The T2 core barrel like the 101 T2 minimizes disturbance thanks to its bearing-mounted inner tube and thin-wall design, which reduces the cutting surface. The result is a better-preserved, more representative core and a smoother sampling workflow for both laboratory analyses and site quality control. This level of precision and consistency also helps optimize costs by reducing rework and securing dependable geotechnical results.

Applications

• Geotechnical soil investigations requiring strong sample preservation
• Quality control on site and laboratory campaigns
• Cohesive formations and setups needing an intact core

Technidrill R&D: your global partner for geotechnical drilling

Technidrill R&D drives continuous innovation across our geotechnical and construction drilling lines—core barrels (single and double), DTH hammers, bits, and drill rods. Our engineering team partners with field crews to translate site constraints into practical designs, running rapid prototyping, materials and heat-treatment trials, and bench/field performance testing to increase penetration rates, improve sample integrity, and reduce cost per meter. From custom diameters and connection types to optimized cutting geometries and serviceable components, the R&D department focuses on reliable, maintainable solutions that integrate smoothly with existing fleets and deliver measurable gains in productivity and lifecycle value.

Need a high-performance core barrel for your soil investigations?
Contact the Technidrill team to configure your 101 T2 around your target cadence and sample quality. Learn more about the full geotechnical range: https://technidrill.com/en/geotechnics/.