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| Categories | Core Drilling Tools | 
|---|---|
| Brand Name: | MTH | 
| Model Number: | HQ | 
| Certification: | ISO9001 | 
| Place of Origin: | CHINA | 
| MOQ: | 1 Piece | 
| Price: | Negotiable | 
| Payment Terms: | T/T, Western Union, MoneyGram | 
| Supply Ability: | 10000 pieces per month | 
| Delivery Time: | 10-15 days | 
| Packaging Details: | wooden case | 
| Product Name: | Diamond Core Drill Bit | 
| Color: | Blue / Green / Orange / Red / Purple | 
| Machine Type: | Drilling Equipment | 
| Material: | Diamond,65Mn | 
| Use: | Geological drilling | 
| Size: | AQ BQ NQ HQ PQ NQ3 HQ3 PQ3 | 
| Machine type: | Core Drill Bit | 
| Packing: | Plastic box,diamond core drill bits packed by box or carton | 
| Application: | Diamond core bits are widely used in the drilling for geological exploration,water conservancy and power engineering,hydro geological exploration and building construction,etc | 
| Advantage: | high wear ability,hot hardness high compressive and impact strength | 
| Company Info. | 
| HEBEI MINETECH MACHINERY TECHNOLOGY CO., LTD | 
| Verified Supplier | 
| View Contact Details | 
| Product List | 
HQ High quality Top sale diamond core drill bits for hard rock
mining Core Drilling Tools
Product information:
The synthetic diamond poly crystalline is manufactured by sintering
the fine grains of synthetic mono crystals and at high temperature
and high-pressure.Coring bits are also called hollow bits, which have the
characteristics of high efficiency and low cost.
Advantage:
high wear ability,hot hardness high compressive and impact strength
Application:
Diamond core bits are widely used in the drilling for geological exploration,water conservancy and power engineering,hydro geological exploration and building construction,etc.
Specifications:
| Size | Outside diameter(mm) | Inside diameter(mm) | 
| AQ | 47.75/47.50 | 27.10/26.85 | 
| BQ | 59.69/59.44 | 36.52/36.27 | 
| BQ3 | 59.69/59.44 | 33.65/33.40 | 
| NQ | 75.44/75.19 | 47.75/47.50 | 
| NQ2 | 75.44/75.19 | 50.80/50.55 | 
| NQ3, NQTT | 75.44/75.19 | 45.21/44.96 | 
| HQ | 95.76/95.38 | 63.63/63.38 | 
| HQ3, HQTT | 95.76/95.38 | 61.24/60.99 | 
| PQ | 122.30/121.80 | 85.09/84.84 | 
| PQ3 | 122.30/121.80 | 83.18/82.93 | 





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