Diamond Core Drill Bit 1-1/4-7UNC

＊Out Diameter: Φ8mm~Φ1000mm                                                  
＊Segment Height:10mm
＊Working Length:245-400mm
＊Total Length:300-450mm
＊Direct Factory,Customization Accepted.

＊Raw Material: Precision Steel Tube & Diamond Segment
＊Screw:1-1/4-7,1-1/4-3,1/2BSP,M22and others
＊Shank Type:Hexgon
＊Application:Reinforced Concrete,Brick,Asphalt with Water.
＊Suitable for:Portable & Fixed Driller

＊Welding Process:High Frequency & Laser
＊Neat Segment Height,High Strength Segment,Sharp and Stable. 

Product Description

Functional Versatility Tailored for Professional Core Drilling

The Diamond Core Drill Bit 1-1/4-7UNC serves engineers and site professionals performing core sampling in reinforced concrete, brick, and asphalt structures. Its universal compatibility with various hole drilling machine models, including those using hex shanks, makes it adaptable across portable and fixed applications. This bit facilitates precise and clean core extraction critical to quality control, material testing, and structural inspections. Users requiring robust performance and custom specifications benefit from direct factory adjustment options, enhancing integration into their established drilling workflows and equipment setups using an advanced hole cutter design.

Precision Engineering with Advanced Material and Connection Features

Manufactured using a high-frequency welding and laser process, the bit’s diamond segment is securely bonded to a precision steel tube to deliver superior durability and cutting accuracy. The design supports multiple screw configurations such as 1-1/4-7 UNC, 1-1/4-3, 1/2 BSP, and M22, enabling seamless compatibility with several hole saw cutter systems. Diameters range from 8 mm up to 1000 mm, accommodating various core sizes for targeted drilling operations. Its hex shank ensures stable connection to drilling machines, optimizing torque transfer and reducing slippage. Such technical attributes contribute to longevity, consistent cutting performance, and efficiency in demanding drilling tasks.

Applications Across Construction and Quality Assurance Domains

Primarily used for obtaining representative core samples, the Diamond Core Drill Bit is integral to new concrete quality verification, structural remediation assessments, and pre-construction evaluations. It also supports on-site and laboratory testing that validates material properties and compliance with engineering standards. The bit’s compatibility with water-cooling hole drilling machines allows it to maintain operational temperature and minimize wear when penetrating dense reinforced substrates. The product’s certification and global export underline its reliability in construction, inspection, and materials engineering sectors requiring precise core drilling solutions.

Product Advantages

Design and Structural Benefits Enhancing Integration and Reliability

This core drill bit features a robust construction combining a diamond segment with a precision steel tube, optimized through high-frequency and laser welding for maximum structural integrity. The modular design supports multiple screw thread interfaces and hex shank options, facilitating its incorporation into various hole drilling machine configurations. This versatility simplifies equipment compatibility, streamlines tooling inventories, and reduces downtime related to bit changes. The metal hole cutter design ensures stable and concentric cutting action, minimizing vibrations and enabling consistent core quality even under harsh working conditions.

Operational Performance and User Efficiency in Demanding Environments

Performance metrics highlight the bit’s capacity to efficiently penetrate reinforced concrete and other tough materials with minimal blade failure and wear rate. Its compatibility with water-cooled drilling systems enhances cutting efficiency and extends service life by controlling heat generation. The user benefits from clean core extractions that require less secondary processing, which improves workflow productivity and reduces labor intensity. Operational adaptability to various drilling machines and customizable length and segment options allow users to tailor the bit to specific project requirements, optimizing cost-effectiveness and ensuring reliable long-term usage.

Use Scenarios

Quality Assurance in Structural Concrete Core Sampling

In the construction and civil engineering industry, ensuring concrete quality is paramount. The Diamond Core Drill Bit plays a critical role in extracting precise core samples from structural elements during both initial construction and remediation inspections. Integrated with site hole drilling machine systems and using water cooling, it provides clean cores necessary for compressive strength testing and material certification compliance. The bit’s compatibility with multiple machine types allows engineers to seamlessly incorporate it into quality control workflows, supporting regulatory adherence and risk mitigation throughout construction phases.

Application in Laboratory and Field Testing for Material Properties

Material testing facilities and research institutions frequently require accurate core samples from reinforced concrete and asphalt to evaluate durability and composition. The drill bit’s multiple thread configurations and hex shank compatibility ensure it can be used with diverse hole saw cutter setups found in portable and fixed drilling machines. This flexibility enhances operational efficiency in field or lab environments by enabling standardized sampling procedures and consistent results. The diamond segment’s resistance to abrasive wear maintains bit integrity across repeated use, essential for ongoing testing demands and maintenance training programs.