Fast delivery Extension Drill Rod - Symmetric Casing Systems with Ring Bit – TDS
Fast delivery Extension Drill Rod - Symmetric Casing Systems with Ring Bit – TDS Detail:
Adavantage
1. the concentric design is more reliable and less torque than the eccentric.
2. large impact power to make high speed drilling.
3. straighter hole.
4. easy to follow the casing.
5. reverse rotation and withdraw the pilot bit to use it for next holes.
| 
 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 | |
| 114 | 101-103 | 125 | 93 | TDS79 | 60 | 
| 140 | 124-127 | 152 | 113 | TDS98 | 76 | 
| 146 | 127-132 | 154 | 115 | TDS98 | 76 | 
| 168 | 149-155 | 184 | 138 | TDS122 | 76,89 | 
| 178 | 159-165 | 194 | 148 | TDS122 | 76,89 | 
| 193 | 173-180 | 206 | 164 | TDS139 | 114 | 
| 219 | 199-206 | 234 | 185 | TDS139,TDS180 | 114 | 
| 244 | 224-231 | 273 | 219 | TDS180 | 
 114  | 
Order Guide: A+B+C+D+G
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The company keeps to the operation concept "scientific management, high quality and efficiency primacy, customer supreme for Fast delivery Extension Drill Rod - Symmetric Casing Systems with Ring Bit – TDS , The product will supply to all over the world, such as: Madrid, Yemen, Yemen, Our company is an international supplier on this kind of merchandise. We supply an amazing selection of high-quality merchandise. Our goal is to delight you with our distinctive collection of mindful items while providing value and excellent service. Our mission is simple: To supply the best items and service to our customers at the lowest prices possible.
Company director has very rich management experience and strict attitude, sales staff are warm and cheerful, technical staff are professional and responsible,so we have no worry about product,a nice manufacturer.
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