| Certification: | ISO 9001:2000, SGS |
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| Standard: | GB |
| Surface Treatment: | Spray-Paint |
| Manufacturing Process: | Forging |
| Material: | Carbon Steel |
| Bit Dia.: | 660mm |
| Samples: |
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| Customization: |
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Suppliers with verified business licenses
Audited Supplier High Air pressure DTH bit.DTH bit is our company main product. After many years search, we have rich experience in development and manufacture which adopted high-quality raw materials, advanced craft technology and passed through strictly inspection, manufacturing high quality products.
If you interested in our product please contact freely.| 3 Inch Hight Air Pressure DTH bits | |||||
| Model | Bit Dia.(mm) | NO. X Button Dia. | NO.Air Holes(PCS) | Weight(KG) | |
| Gauge | Front | ||||
| MDHM30-85 | 85 | 6*Φ13 | 4*Φ12 | 2 | 4.5 |
| MDHM30-90 | 90 | 6*Φ14 | 4*Φ12 | 2 | 4.7 |
| MDHM30-95 | 95 | 6*Φ14 | 4*Φ13 | 2 | 4.9 |
| MDHM30-100 | 100 | 6*Φ14 | 5*Φ12 | 2 | 5.0 |
| MDHM30-105 | 105 | 6*Φ14 | 5*Φ13 | 2 | 5.5 |
| 4 inch high air pressure DTH bits | |||||
| MDHM4-105 | 105 | 6*Φ14 | 5*Φ13 | 2 | 6.0 |
| MDHM4-110 | 110 | 7*Φ14 | 6*Φ13 | 2 | 6.2 |
| MDHM4-115 | 115 | 7*Φ14 | 6*Φ13 | 2 | 6.6 |
| MDHM4-120 | 120 | 8*Φ14 | 7*Φ13 | 2 | 7.0 |
| MDHM4-127 | 127 | 8*Φ14 | 7*Φ13 | 2 | 7.4 |
| 5 inch high air pressure DTH bits | |||||
| MDHM5-135 | 135 | 7*Φ18 | 6*Φ14 | 2 | 12.5 |
| MDHM5-140 | 140 | 7*Φ18 | 7*Φ14 | 2 | 13.5 |
| MDHM5-146 | 146 | 7*Φ18 | 7*Φ14 | 2 | 14.0 |
| MDHM5-152 | 152 | 8*Φ18 | 8*Φ14 | 2 | 14.4 |
| MDHM5-165 | 165 | 8*Φ18 | 8*Φ16 | 2 | 15.0 |
| 6 inch high air pressure DTH bits120 | |||||
| MDHM6-152 | 152 | 8*Φ18 | 7*Φ16 | 2 | 22.0 |
| MDHM6-165 | 165 | 8*Φ18 | 8*Φ16 | 2 | 23.0 |
| MDHM6-171 | 171 | 8*Φ18 | 8*Φ16 | 2 | 24.0 |
| MDHM6-190 | 190 | 9*Φ18 | 9*Φ16 | 3 | 25.0 |
| MDHM6-203 | 203 | 9*Φ18 | 11*Φ16 | 3 | 28.0 |
| 8 inch high air pressure DTH bits | |||||
| MDQL80-305 | 305 | 12*Φ18 | 29*Φ16 | 4 | 95.0 |
| MDHM8-203 | 203 | 10*Φ18 | 10*Φ16 | 2 | 35.0 |
| MDHM8-216 | 216 | 10*Φ18 | 12*Φ16 | 2 | 40.0 |
| MDHM8-241 | 241 | 12*Φ18 | 18*Φ16 | 2 | 54.0 |
| MDHM8-254 | 254 | 12*Φ18 | 21*Φ16 | 3 | 57.0 |
| MDHM8-305 | 305 | 12*Φ18 | 29*Φ16 | 4 | 77.0 |
| 10 inch high air pressure DTH bits | |||||
| MDHM100-254 | 254 | 12*Φ18 | 20*Φ16 | 3 | 90.0 |
| MDHM100-305 | 305 | 12*Φ18 | 36*Φ16 | 4 | 102.0 |
| MDHM100-311 | 311 | 12*Φ18 | 36*Φ16 | 4 | 104.0 |
| MDHM100-318 | 318 | 12*Φ18 | 38*Φ16 | 4 | 106.0 |
| MDHM100-330 | 330 | 14*Φ18 | 42*Φ16 | 4 | 112.0 |
| 12 inch high air pressure DTH bits | |||||
| MDHM120-305 | 305 | 12*Φ18 | 36*Φ16 | 4 | 152.0 |
| MDHM120-311 | 311 | 12*Φ18 | 36*Φ16 | 4 | 158.0 |
| MDHM120-330 | 330 | 16*Φ18 | 42*Φ16 | 4 | 165.0 |
| MDHM120-356 | 356 | 16*Φ19 | 48*Φ16 | 4 | 178.0 |
| MDHM120-381 | 381 | 16*Φ19 | 48*Φ18 | 4 | 195.0 |
| MDHM125-305 | 305 | 12*Φ18 | 36*Φ16 | 4 | 170.0 |
| MDHM125-311 | 311 | 12*Φ18 | 36*Φ16 | 4 | 173.0 |
| MDHM125-330 | 330 | 16*Φ18 | 42*Φ16 | 4 | 182.0 |
| MDHM125-356 | 356 | 16*Φ19 | 48*Φ16 | 4 | 191.0 |
| MDHM125-381 | 381 | 16*Φ19 | 48*Φ18 | 4 | 200.0 |
1. How to order the products?
A: Please send the inquiry with detail item description or with Model number.
2. Can I expect a quality products?
A: Yes. mature production technology ensuring the quality satisfy international request.
3. How to check the product are the exact one you want?
A: If possible, please attach one reference picture to avoid any misunderstanding or any links from ourwebsite for a better understanding.
4. How to make sure the quality?
A: More than 40 Years engineer to make sure the quality, 100% inspection.
5. What is the general delivery time?
A: 15 working days for DTH bits.
20-25 working days for DTH hammer
3-5 working days for ex stock items.
6. Methods of Payment
A: T/T (Telegraphic Transfer) or Western Union.
Packed by Carton or Wooden cases.
Delivery:
Transprotation: By air, By Express or By sea / By train , according to your requests.
Suppliers with verified business licenses
Audited Supplier 
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