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CIR90 CIR110 CIR130 CIR150 CIR170 Low Air Pressure DTH Hammers Bits
| 2 inches DTH hammer button bits | |||||
| Shank style | Diameter in mm | Flushing holes No. | Gauge buttons | Face buttons | Approx weight |
| BR2 |
76 | 3 | 6*13mm | 3*13mm | 3.6kg |
| 80 | 3 | 6*14mm | 3*13mm | 4.0kg | |
| 90 | 3 | 6*14mm | 5*12mm | 4.2kg | |
| 3 inches DTH hammer button bits | |||||
| Shank style | Diameter in mm | Flushing holes No. | Gauge buttons | Face buttons | Approx. weight |
| BR3 |
85 | 2 | 6*13mm | 4*12mm | 3.8kg |
| 90 | 2 | 7*13mm | 5*12mm | 4.0kg | |
| 95 | 2 | 7*13mm | 6*12mm | 4.3kg | |
| 100 | 2 | 7*13mm | 6*12mm | 4.8kg | |
| 105 | 2 | 8*12mm | 7*12mm | 5.2kg | |
DTH hammer bits hole diameter: 3", 4", 5", 6", 8"(85mm-305mm).
Advantages
1.Improved steel grade for better fatigue properties
2.Five basic front designs
3.Designs for all rock types
1. Imported premium TCI ( Tungsten Carbide Inserts ) , Longer intervals between regrinds
2.Harder and stronger bit body steel
3. Ensure the longest possible service life
4. Approximately 20 % fewer bits now handle all surface drilling applications specially for Quartz which are with very heavy duty and very abrasive rock formation and condition.
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