Diamond Core Drill Bits

Diamond Core Drill Bits are optimized for use in asphalt, reinforced concrete, or other hard materials to extract high-quality samples for analysis. All drilling bits are constructed for wet use and fast-cutting when used according to design applications.

All bits fit standard core drills with 1.25″ x 7 thread. The bits have a standard 14in (356mm) length for cutting cores up to 12in (305mm) long. The final core diameter is approximately 0.25in (6.4mm) smaller than the nominal outside diameter. Drill bits are available in two design styles, open-head or closed-head.

Note: Open-head bits require an Expander Set

2in Asphalt Core Drill Bit (Closed-Head)

$106.50

Model: CDA-221

2in Concrete Core Bit (Closed-Head)

$119.00

Model: CDA-121

2in Asphalt Core Drill Bit (Open-Head)

$106.50

Model: CDA-220

2in Concrete Core Bit (Open-Head)

$119.00

Model: CDA-120

2.25in Asphalt Core Drill Bit (Closed-Head)

$113.50

Model: CDA-223

2.25in Concrete Core Bit (Closed-Head)

$127.50

Model: CDA-123

2.25in Asphalt Core Drill Bit (Open-Head)

$113.50

Model: CDA-222

2.25in Concrete Core Bit (Open-Head)

$127.50

Model: CDA-122

3in Asphalt Core Drill Bit (Closed-Head)

$150.50

Model: CDA-231

3in Concrete Core Bit (Closed-Head)

$168.50

Model: CDA-131

3in Asphalt Core Drill Bit (Open-Head)

$150.50

Model: CDA-230

3in Concrete Core Bit (Open-Head)

$168.50

Model: CDA-130

3.25in Asphalt Core Drill Bit (Closed-Head)

$161.00

Model: CDA-233

3.25in Concrete Core Bit (Closed-Head)

$188.00

Model: CDA-133

3.25in Asphalt Core Drill Bit (Open-Head)

$161.00

Model: CDA-232

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Open-head coring bit design is economical for extended use with high sample production and require an Expander Set to attach to the core drill. Convenient closed-head bits attach directly to the drill with no extra parts required. Closed-head is best suited for light to medium work applications. Both bit styles can be refurbished when diamond cutting segments appear to be worn.