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Introducing our latest innovation, the 114mm RETRIEVABLE RING Double Drifters Casing System Tophammer Symmetrix Bit. This top-of-the-line drilling system is designed to drill and case a hole simultaneously through even the most unstable ground conditions, making it the perfect solution for a wide range of drilling projects.
| Outer Dia. of Casing Tube | Inner Dia. of Casing Tube |
| 108mm | 93-99mm |
| Reamed Dia. | Min. Inner Dia. of Casing Shoe |
| 118mm | 86mm |
| Drill Pipes | Max. Outer Dia. of Normal Bit |
| 76mm | 77mm |
Designed to drill and case simultaneously for maximum efficiency
Incorporated with a satisfactory ring or reusable ring for improved penetration rate and hole straightness
Internal flushing grooves and built-in casing shoes create a good seal at the bottom of the drilling hole, minimizing disruption to the surrounding area
Retrievable ring bit allows for easy retrieval of the drill string without the need for reverse rotation
Water well drilling
Geothermal well drilling
Short micro-piles
Medium mini-type grouting holes for building, dam, and harbor projects
Take a closer look at our RETRIEVABLE RING Double Drifters Casing System Tophammer Symmetrix Bit in action. This versatile drilling system is suitable for a wide range of applications and built to withstand even the toughest drilling conditions.

No approved technical specifications are available yet. Please refer to the product description or contact our team.
This drilling system is designed to drill and case a hole simultaneously, making it ideal for various drilling projects, particularly in unstable ground conditions.
The outer diameter of the casing tube is 114mm, and the inner diameter ranges from 93mm to 99mm.
The maximum outer diameter of the normal bit is 76mm.
Yes, the 114mm Retrievable Ring Double Drifters Casing System is specifically designed for geothermal well drilling among other applications.
The retrievable ring bit allows for the easy retrieval of the drill string without needing to reverse the rotation, enhancing operational efficiency.
This system is suitable for water well drilling, geothermal well drilling, short micro-piles, and medium mini-type grouting holes for construction projects.
Yes, the internal flushing grooves and built-in casing shoes create a good seal at the bottom of the drilling hole, which minimizes disruption.
The reamed diameter of the casing shoe is 118mm, while the minimum inner diameter is 86mm.
The system incorporates a satisfactory ring or reusable ring that enhances penetration rates and ensures better hole straightness.
Yes, it is specifically designed to handle unstable ground conditions effectively.
The weight specifications are not provided in the product description; please contact customer support for detailed weight information.
The specific materials are not mentioned in the description; please refer to the product specifications or contact customer support for details.
You can check the product info gallery provided in the description for visual demonstrations of the RETRIEVABLE RING Double Drifters Casing System in action.
Yes, it is designed to be compatible with standard drilling equipment, but please confirm with your specific setup.
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