Our production
| Name: | BIG SIZE DTH BIT |
|---|---|
| Type: | High Air Pressure DTH Bit |
| Model: | KD275/KD330/KD475/KD525 |
| Application: | Water well/Oil/Gas/Construction Drilling |
| Drill head diameter: | 311-998mm |
| No Air Holes: | 3-4pcs |
| Weight: | 205-1980kgs |
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