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he fellows are some detail parameters of our products,in order to save your time,we just show you the datas.
Applications
It is mainly used in geological exploration, coal mine, water conservancy and hydropower, highway, railway, bridge, construction and so on.
Specifications
| 8” Middle Air Pressure DTH Bits |
| ND85(DHD380,COP84) | THE Drill Head Diameter(mm) | Spline Key Number | NO.Air Holes | Gauge Buttons | Front Buttons | Weight(KG) |
| 195 | - | 3 | 9XØ18 | 9XØ16 | 33.0 |
| 203 | - | 2 | 10XØ18 | 13XØ16 | 40.0 |
| 216 | - | 2 | 10XØ18 | 14XØ16 | 49.0 |
| 254 | - | 3 | 12XØ18 | 17XØ16 | 71.0 |
| 305 | - | 4 | 12XØ18 | 29XØ16 | 95.0 |
| NM8 | 203 | - | 2 | 10XØ18 | 13XØ16 | 35.0 |
| 216 | - | 2 | 10XØ18 | 14XØ16 | 40.0 |
| 241 | - | 2 | 12XØ18 | 18XØ16 | 54.0 |
| 254 | - | 2 | 12XØ18 | 21XØ16 | 57.0 |
| 305 | - | 4 | 12XØ18 | 29XØ16 | 77.0 |
| NQL80 | 195 | - | 3 | 9XØ18 | 9XØ16 | 32.0 |
| 203 | - | 2 | 10XØ18 | 13XØ16 | 35.0 |
| 216 | - | 2 | 10XØ18 | 14XØ16 | 49.0 |
| 254 | - | 2 | 12XØ18 | 21XØ16 | 71.0 |
| 305 | - | 4 | 12XØ18 | 29XØ16 | 95.0 |
| NSD8 | 195 | - | 3 | 9XØ18 | 9XØ16 | 32.0 |
| 203 | - | 2 | 10XØ18 | 12XØ16 | 37.0 |
| 216 | - | 2 | 10XØ18 | 14XØ16 | 48.0 |
| 254 | - | 2 | 12XØ18 | 21XØ16 | 70.0 |
| 305 | - | 4 | 12XØ18 | 29XØ16 | 94.0 |
| WE can design and manufacture according to customers requirement of the bit diameter,the NO.of air holes,carbide buttons and the face shape. |
1. Long life span: the wear-resist of tungsten carbides is 10-20 times higher compared with other similar materials, which greatly extends the life of the carbide bits;
2. High drilling efficiency: the high grade hardness of the carbides can always stay sharp, which could increase the drilling speeds too;
3. New Diamond's bits are widely used in different rock formations like carbonate rock,limestone,chalk rock, clay rock,siltstone and sandstone;
4. It can greatly reduce the drilling cost, because of its high drilling speed and life span, which reduces the times to changes bits in the drilling service.
The appearance of the picture is different from that of the actual product, and the actual product is the standard.
Product Tags:
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Clay / Chalk Rock Boring Bits , 8 Inch DTH Oil Drill Bit Anti Corrosive Images
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