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PQ3 HQ3 NQ3 PQ HQ NQ diamond drilling coring crowns
Depending on the range of application as well as the cutting media on the core bits, Forsun makes six types of core bits:
---Impregnated Diamond Type
---Surface set Diamond Type
---Tungsten Carbide Type
---PDC Type
---PCD Type
---Electroplated Diamond Type
Core Bits are used for drilling materials like the rock, concrete, limestone, granite, marble, clay, basalt, schist, quartz etc..






* Above is our ordinary ways of package and delivery.
* Or as per your requirements.
Q: Are you a manufacturer or trading company?
A: We are a manufacturer, the factory is located in Changsha, Hunan, China.
Q: What are your main products?
A: Our products cover diamond core bit, non-coring bit, reaming shell, core barrel, casing pipe, drill rod, soil sampling equipment and other accessories.
Q: How about the delivery terms?
A: 1. Payment: T/T, L/C, Western Union, Paypal.
2. No request on min. order quantity.
3. Transportation: By DHL/UPS/Fedex express, air, sea, train.
Q: How about discount?
A: Price is based on order quantity.
Q: Do you accept sample order?
A: Yes sure, please contact us for details.
Q: How about your after-sales service?
A: As a manufacturer, we offer promt technical support for all issues. Besides we accept goods return or replace for quality problem.
Q: How does your company control the quality?
A: Quality always comes first. In order to guarantee quality for our products, Forsun always makes a serious inspection for all products and raw materials in strict procedure. We have obtained certificate of ISO9001:2000 in 2004.

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