Factory supplied Drill Bit - Eccentric Overburden Drilling System – TDS
Factory supplied Drill Bit - Eccentric Overburden Drilling System – TDS Detail:
- Application Range
It is suitable for drilling water wells,geothermal wells, short mircopiles medium mini-type grouting hole of building, dam and harbour project.
- Design Principles
Make the casing follow easy and the equipment and operation simple
- Outstanding Advantages
Simple structure,simple operation,reliable quality,retrievable drilling tools,long service life.
- Specifications
A | B | C | D | E | F |
Outer Dia. of Casing Tube | Inner Dia. of Casing Tube | Reamed Dia. | Min. Inner Dia.of Casing Shoe | Hammer Type | Drill Pipes |
mm | mm | mm | mm | mm | |
108 | 93-99 | 118 | 86 | TDS79 | 76 |
114 | 101-103 | 127 | 91 | R56,T38,TDS79 | 76 |
127 | 114-116 | 136 | 101 | TDS79 | 76 |
140 | 124-127 | 152 | 117 | TDS98 | 76 |
146 | 127-132 | 154 | 117 | TDS98 | 76 |
168 | 149-155 | 184 | 140 | TDS122 | 76,89 |
178 | 159-165 | 194 | 150 | TDS122 | 76,89 |
193 | 173-180 | 206 | 166 | TDS139 | 89,114 |
219 | 199-206 | 234 | 193 | TDS139,TDS180 | 89,114 |
245 | 224-231 | 260 | 210 | TDS180,TDS220 | 114 |
273 | 251-257 | 300 | 241 | TDS180 |
114,127 |
- Usage:
1. In not stable rock formation, the casing is necessary to follow.
2. Usually in water well drilling, for large hole boring.
3. Drilling depth is better less than 40 metres to control the hole well.
4. Match to 6″ hammer and 194mm casing tube.
5. Air pressure is 20 Bar and air volumn is 500 cfm.
6. The tools is fetched out to use in the next holes.
Product detail pictures:




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We enjoy a very good reputation among our customers for our excellent product quality, competitive price and the best service for Factory supplied Drill Bit - Eccentric Overburden Drilling System – TDS , The product will supply to all over the world, such as: Boston, Grenada, Sheffield, With the development and enlargement of mass clients abroad, now we have set up cooperative relationships with many major brands. We have our own factory and also have many reliable and well-cooperated factories in the field. Adhering to the "quality first, customer first, We are provideing high-quality, low-cost products and first-class service to customers. We sincerely hope to establish business relationship with customers from all over the world on the basis of quality, mutually benefit. We welcome OEM projects and designs.

Product quality is good, quality assurance system is complete, every link can inquire and solve the problem timely!

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