2in Expander Set for Open-Head Drill Bits

CDA-50 shown

2in Expander Set for Open-Head Drill Bits

Model: CDA-40

$59.50 $51.40 Save ($8.10)

Lowest price in last 30 days: $187.50

2in Expander Set for Open-Head Drill Bits

2in Expander Set for Open-Head Drill Bits

Model: CDA-40

Old price: $51.40

Price: $59.50

2.25in Expander Set for Open-Head Drill Bits

2.25in Expander Set for Open-Head Drill Bits

Model: CDA-41

Old price: $52.90

Price: $61.00

3in Expander Set for Open-Head Drill Bits

3in Expander Set for Open-Head Drill Bits

Model: CDA-43

Old price: $70.00

Price: $81.00

3.25in Expander Set for Open Head Drill Bits

3.25in Expander Set for Open Head Drill Bits

Model: CDA-55

Old price: $86.80

Price: $87.00

4in Expander Set for Open-Head Drill Bits

4in Expander Set for Open-Head Drill Bits

Model: CDA-45

Old price: $92.90

Price: $107.50

4.25in Expander Set for Open-Head Drill Bits

4.25in Expander Set for Open-Head Drill Bits

Model: CDA-46

Old price: $105.60

Price: $118.00

6in Expander Set for Open-Head Drill Bits

6in Expander Set for Open-Head Drill Bits

Model: CDA-50

Old price: $168.20

Price: $160.50

6.25in Expander Set for Open-Head Drill Bits

6.25in Expander Set for Open-Head Drill Bits

Model: CDA-51

Old price: $169.50

Price: $187.50

Description
Specifications
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Q&A

Expander Sets are required when using Open-Head Core Drill Bits. Attachment is simply done by mounting the expander set to the bottom of the drill bit and threaded onto a Gas-Powered Core Drill or an Electric Core Drill. The Expander Set can be reused multiple times as coring bits wear down and are changed. A different set is mandatory for each OD bit size used.

Features:

Can be reused indefinitely as core bits wear out
Standard 1-1/4” diameter, 7 threads per inch connection for compatibility with various manufacturers’ core drills

Included Items:

Expander Set

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Product tags

Specifications

Attribute name	Attribute value
Estimated Shipping Weight	CDA-40: 3.0lb (1.36kg) CDA-41: 3.0lb (1.36kg) CDA-43: 4.0lb (1.81kg) CDA-55: 4.0lb (1.81kg) CDA-45: 5.0lb (2.27kg) CDA-46: 5.0lb (2.27kg) CDA-50: 7.0lb (3.18kg) CDA-51: 7.0lb (3.18kg)

Product Q&A

Q: How are longer specimens extracted and the piston returned?

Specimens longer than 5in are extracted by repositioning the Adapter Ring after maximum piston travel, and the spring-loaded piston automatically returns to the start position when the release valve is opened.