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Sacrificial Drill Bit
- Code No. : T103-200mm,EXX Type
- Outer diameter thread length : 138mm
- Inner diameter thread : 108mm
- length of the thread : 66mm
- Total length of drill bit : 125-160mm
One of the main components in this technology is a sacrificial drill bit. It helps the drilling and inserting of SDA operation at the same time. This increases the productivity of the SDA installation. The sacrificial drill bit quality defines improving the SDA technique’s penetration rate, performance, and cost-efficiency.
Sacrificial Drill Bit(EXX) Specification
| NO. | Bit Type | thread | Out Dia. mm | Weight kg | Hardness HRC | Steel Type | |
| Spec | L/R hand | ||||||
| 1 | EXX | R32 | L/R | 45 | 0.38 | 87-90(Carbide) | EN10083-1=4140=42CrMo |
| 2 | T30 | 0.37 | |||||
| 3 | R32 | 51 | 0.42 | ||||
| 4 | T30 | 0.42 | |||||
| 5 | R32 | 76 | 1.22 | ||||
| 6 | R38 | 1.27 | |||||
| 7 | T40 | 1.27 | |||||
| 8 | T40 | 90 | 2 | ||||
| 9 | T40 | 100 | 2.2 | ||||
| 10 | R51 | 110 | 3.2 | ||||
| 11 | R51 | 115 | 3.5 | ||||
| 12 | T73 | 130 | 4.1 | ||||
| 13 | T76 | 3.65 | |||||
| 14 | T76 | 150 | 6.3 | ||||
| 15 | T103 | 175 | 6.96 | ||||
| 16 | T108 | 138 | 11.5 | ||||