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Double Head Casing Drilling System
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Description:

Brief introduction:
The dual-head casing drilling system increases drilling flexibility under different conditions.

During drilling, with water or Compressed air as the medium, the discharge head rotates the casing and drill pipe through. In addition to the benefits of increased flushing control, the internal and external string can be controlled separately, which greatly increases control over drilling operations.

For deeper drilling applications, dual-casing drilling tools allow internal flushing of the dual-string drilling system, maximizing the accuracy of the target. The double casing drilling method reduces the risk, shortens the construction period and achieves good results. It can be widely used in cofferdam, foundation, geothermal well and other engineering grouting hole drilling.

We offer a full line of dual-ended casing drilling systems designed for specific drilling applications. It can be used in rotary percussion mixed drilling or pure rotary drilling.

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Product Detail
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Specifications of Double head casing drilling system:
Casing Drill Bits Inner Bits
Casing OD Bit OD Thread Bit Diameter Thread
mm inch mm inch mm inch
118 4 5/8 125 4 15/16 T104.2 83, 85 3 1/4, 3 3/8 R56×12.7
133 5 1/4 140, 142 5 1/2, 5 5/8 T122 99,102 3 7/8, 4 R56×12.7
133 5 1/4 152 6 T122 116 4 9/16 R78×22.56
146 5 3/4 155 6 1/8 T134 115 4 1/2 R56×12.7
165 6 1/2 172 6 3/4 T146.5 128 5 1/16 R83×22.56
168 6 5/8 175 6 7/8 T153.9 127 5 R56×12.7
216 8 1/2 225 8 1/4 T203 165 6 1/4 R120×22.56

Package

Picture of Double head casing drilling system

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OUR SERVICE
☑ We will provide more precisely and efficiently manufacture and serve according to clients' drawings.
☑ We have professional QC team to ensure your product more better.
☑ Check the raw material before starting production.
☑ Have the random inspection during the processing.
☑ Make the 100% inspection before the shipments.
WHY ARE YOU CHOOSE US
☑ We have been engaged in tapered cross bit for more than 20 years.
☑ apered cross with conical pipe drilling perfect;
☑ Reliable work, high cost performance;
☑ Accurate the dimension of taper degree perfectly matches the rods;
☑ High grade tungsten carbide inserts;
☑ The drill bit is made of high quality steel and uses the most advanced CNC machinery and heat treatment process.
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