Rotary Drag Bits
EXPO DTH drill pipes are made of top quality alloy seamless steel, thread ends are friction welded to insure high standards .The high air pressure is delivered to DTH hammer through the EXPO DTH drill pipes and transfers the rotation and pull down force to the DTH hammer.
Advantages:
- Fast penetration rate in soft formations
- Ideal with air flushing
- Rigid wing design
Applications:
- Mining Exploration
- Geotechnical Investigation
- Water Well Drilling
- Shoring Drilling
Product Description
| Size (Inch) | Thread Size |
| 3 | 2 3/8″ PIN |
| 3 1/2 | 2 3/8″ PIN |
| 4 | 2 3/8″ PIN |
| 4 1/4 | 2 3/8″ PIN |
| 4 1/2 | 3 1/2″ PIN |
| 4 3/4 | 2 3/8″ REG |
| 5 1/8 | 2 3/8″ REG |
| 5 7/8 | 3 1/2″ PIN |
| 6 1/4 | 3 1/2″ PIN |
| 6 1/2 | 3 1/2″ PIN |
| 7 3/4 | 3 1/2″ PIN |
| 8 1/2 | 3 1/2″ PIN |