4.25in Concrete Core Drill Bit (Open-Head)

4.25in Concrete Core Drill Bit (Open-Head)

4.25in (108mm) Concrete Core Drill Bit (Open-Head)

The 4.25in (108mm) Concrete Core Drill Bit is a durable, high-performance tool designed for obtaining drilled cores of hardened concrete or asphalt for laboratory testing, evaluation, or structural analysis. This open-head core bit is specifically engineered for use with Gasoline or Electric-Powered Core Drills, making it ideal for professional contractors and engineers working on demanding projects. It attaches to the drilling machine using an appropriately sized Expander Set, which is sold separately.

Constructed with diamond segments, this core drill bit offers exceptional cutting power for reinforced concrete, asphalt, and other hard materials. The diamond segments ensure long-lasting performance in high-output, heavy-use applications and can be refurbished when worn to extend the bit's lifespan. Designed for wet-use drilling, it reduces friction and heat buildup, improving efficiency and ensuring clean, precise cuts even in tough materials. Its fast-cutting capability makes it suitable for both small-scale and large-scale projects, saving valuable time on the job.

With a standard length of 14in (356mm), this core bit is capable of cutting cores up to 12in (305mm) in length, making it versatile for a range of applications. The final core diameter is approximately 0.25in (6.4mm) smaller than the nominal outside diameter, providing accurate results for laboratory or field evaluations.

Key Features:

• Fast-Cutting Performance: Designed for quick, efficient drilling through concrete, asphalt, and similar hard materials.
• Durable Diamond Segments: Provides excellent longevity and can be refurbished to extend usability.
• Open-Head Design: Attaches easily to core drilling machines with size-specific Expander Sets (sold separately).
• Wet-Use Compatibility: Improves performance and precision by reducing heat and friction during drilling.
• Meets Industry Standards: Fully compliant with ASTM C42/42M and AASHTO T 24M/T 24 standards for core sampling.

Applications:

This core drill bit is perfect for use in construction, roadwork, and material analysis, including:

• Sampling and testing hardened concrete or asphalt for quality control or structural integrity.
• Gathering cores for laboratory evaluations of material properties.
• Drilling through reinforced concrete in large infrastructure projects.

Specifications:

• Nominal Bit Size (OD): 4-1/4in (108mm)
• Cutting Length: Up to 12in (305mm)
• Mounting Connection: Open-Head
• Application: Concrete and Asphalt

Additional Information:

• Expander Sets: Required for attaching the bit to the core drill machine. Available in sizes corresponding to the bit and purchased separately.
• Refurbishment Option: Extend the life of the diamond segments through refurbishment services.

Compliant Standards:

• ASTM C42/42M: Standard Test Method for Obtaining and Testing Drilled Cores and Sawed Beams of Concrete.
• AASHTO T 24M/T 24: Standard Method of Test for Obtaining and Testing Drilled Cores of Concrete.

Upgrade your drilling equipment with the 4.25in Concrete Core Drill Bit and experience fast, reliable performance for your toughest projects!