Changsha Tianhe Drilling Tools and Machinery Co.,Ltd.
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Teamwhole Factory Direct Sales 146 Double Casing Drilling Tools
1. Different Structure:With inner drill rods and With inner hammer
2. Outer dia of casing tube:118-168
3. Drill bit Dia:85-127
Application Range
It can be widely used in drilling for grouting holes in projects such as cofferdam,foundation and geothermall and etc.
Working Principles
As water or compressed air for medium,the discharged head make the casing tube and drill rod totate and penetrate.
Structure
with inner drill rods and with inner hammer and Easy operation
Technical parameters
|
| Ring Bit | Inner Bit | |||||||
| Outer Dia. of Casing (mm) |
Bore Hole Dia. (mm) |
Thread (mm) |
Buttons Dia.×Qty. |
Weight (kg) | Drill Rod Dia. (mm) | Drill Bit Dia. (mm) |
Thread |
Buttons Dia.×Qty. |
Weight (kg) |
| 118 | 125 | 104.2 | 12×13mm/6×12mm | 7.0 | 73 | 85 | R56 | 8×12mm/6×11mm | 4.5 |
| 133 | 142 | 122 | 12×13mm/6×13mm | 7.5 | 73 | 99 | R56 | 8×14mm/6×14mm | 5.0 |
| 146 | 155 | 134 | 12×14mm/4×13mm | 8.0 | 73 | 115 | R56 | 8×14mm/7×12mm | 6.0 |
| 168 | 175 | 153.9 | 12×12mm/6×12mm | 10.5 | 73 | 127 | R56 | 9×14mm/8×14mm | 7.0 |
