3.25in Concrete Core Drill Bit (Open-Head)

3.25in Concrete Core Drill Bit (Open-Head)

3.25in (82.5mm) Concrete Core Drill Bit (Open-Head)

The 3.25in (82.5mm) Concrete Core Drill Bit is a high-performance tool designed for obtaining drilled cores of hardened concrete or asphalt for laboratory testing and evaluation. This bit is compatible with both gasoline-powered core drills and is ideal for professionals handling demanding construction, engineering, or testing tasks. Built for durability and efficiency, the diamond cutting edge ensures fast, precise coring in tough materials like reinforced concrete, asphalt, and similar substrates.

This open-head design requires a properly sized Expander Set (sold separately) to attach the bit securely to the drilling machine. Engineered for wet use, the Diamond Coring Bit excels in high-output, heavy-use scenarios, cutting through materials with minimal resistance. Its robust construction allows for refurbishment, extending its lifespan and reducing costs for frequent users.

The standard 14in (356mm) bit length accommodates core depths up to 12in (305mm), making it suitable for a wide range of applications, from construction site sampling to lab testing. The final core diameter is approximately 0.25in (6.4mm) smaller than the bit’s nominal outside diameter, ensuring precision in sample extraction.

Key Features:

• Fast and Efficient Cutting: Specifically designed for concrete and asphalt, this bit delivers quick, accurate results.
• Durable Diamond Tip: Performs exceptionally well in heavy-use and high-output environments, with the option for refurbishment after wear.
• Versatile Compatibility: Attaches easily to core drilling machines using a size-specific Expander Set (sold separately).
• Standard Compliance: Meets ASTM and AASHTO standards for reliable, industry-aligned performance.
• Wet-Use Design: Ideal for reinforced concrete and hard material coring, ensuring clean and effective cutting.

Specifications:

• Application: Concrete and asphalt coring
• Nominal Bit Size (OD): 3-1/4in (82.6mm)
• Mounting Connection: Open-Head (requires Expander Set)
• Bit Length: 14in (356mm) for maximum core depths up to 12in (305mm)
• Estimated Shipping Weight: 4.5lb (2.04kg)
• Usage: Designed for laboratory testing, professional construction, and engineering applications

Standards Met:

• AASHTO T 24M/T 24
• ASTM C42/42M

Additional Considerations:

For optimal performance, always use the bit with the appropriate equipment and ensure proper wet-use practices to prolong the lifespan of both the drill bit and the drilling machine. The Expander Set must be purchased separately, and its size should correspond to the nominal diameter of the bit.

Whether you're conducting material strength testing or creating samples for analysis, the 3.25in Concrete Core Drill Bit delivers the precision and reliability you need in the field or lab.