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2in Expander Set for Open-Head Drill Bits
CDA-50 shown
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Open M–F: 8:00am–5:00pm

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2in Expander Set for Open-Head Drill Bits

Model: CDA-40
$51.40
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Open M–F: 8:00am–5:00pm

Call Us: (800) 444-1508
Description

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)

Quick Compare

Features
2in Expander Set for Open-Head Drill Bits

2in Expander Set for Open-Head Drill Bits
2.25in Expander Set for Open-Head Drill Bits

2.25in Expander Set for Open-Head Drill Bits
3in Expander Set for Open-Head Drill Bits

3in Expander Set for Open-Head Drill Bits
3.25in Expander Set for Open Head Drill Bits

3.25in Expander Set for Open Head Drill Bits
4in Expander Set for Open-Head Drill Bits

4in Expander Set for Open-Head Drill Bits
4.25in Expander Set for Open-Head Drill Bits

4.25in Expander Set for Open-Head Drill Bits
6in Expander Set for Open-Head Drill Bits

6in Expander Set for Open-Head Drill Bits
6.25in Expander Set for Open-Head Drill Bits

6.25in Expander Set for Open-Head Drill Bits
Pricing $51.40 $52.90 $70.00 $86.80 $92.90 $105.60 $168.20 $169.50
Nominal Bit Size, OD 2in (50.8mm) 2.25in (57.2mm) 3in (76.2mm) 3.25in (82.6mm) 3.25in (82.6mm) 4.25in (108mm) 6in (152.4mm) 6.25in (158.8mm)
Estimated Shipping Weight 3.0lb (1.36kg) 3.0lb (1.36kg) 4.0lb (1.81kg) 4.0lb (1.81kg) 5.0lb (2.27kg) 5.0lb (2.27kg) 7.0lb (3.18kg) 7.0lb (3.18kg)
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Product Q&A

Displaying Q&A 1-4 of 8

Q: Will this work with fan-forced heaters?

I'm very satisfied with this product. It was exactly what I wanted in my travel trailer, for a lot more accurate heating. Now I can pinpoint it to exactly the temperature I want, instead of guessing, sliding the conventional thermostat back and forth. Will for sure save on propane too! Nice back light when adjusting the temperature, making it easy to see even at night.

Q: Will this work with fan-forced heaters?

I'm very satisfied with this product. It was exactly what I wanted in my travel trailer, for a lot more accurate heating. Now I can pinpoint it to exactly the temperature I want, instead of guessing, sliding the conventional thermostat back and forth. Will for sure save on propane too! Nice back light when adjusting the temperature, making it easy to see even at night.

Q: Will this work with fan-forced heaters?

I'm very satisfied with this product. It was exactly what I wanted in my travel trailer, for a lot more accurate heating. Now I can pinpoint it to exactly the temperature I want, instead of guessing, sliding the conventional thermostat back and forth. Will for sure save on propane too! Nice back light when adjusting the temperature, making it easy to see even at night.

Q: Will this work with fan-forced heaters?

I'm very satisfied with this product. It was exactly what I wanted in my travel trailer, for a lot more accurate heating. Now I can pinpoint it to exactly the temperature I want, instead of guessing, sliding the conventional thermostat back and forth. Will for sure save on propane too! Nice back light when adjusting the temperature, making it easy to see even at night.

Displaying Q&A 1-4 of 8
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