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Trade Assurance
China (Mainland) | Trading Company
Transaction Level:
Supplier Assessments:
5 Transactions 10,000+
The supplier’s transactions conducted via Alibaba.com in the past 6 months.
The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $32,000
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Our company pays attention to product quality and abides to credit, and also does the best to provide the quality products and excellent service to customer. To build good after-sale service system, we draw up the Quality Guarantee according to the industrial standards combining field experience.


 Our company's drilling rig and Mud Pump machines, please see the Quality Guarantee detail on the Warranty Card. 




Diamond/PDC Drill Bit

1.Size,and/or technical parameters ( matrix etc) are different from the requirements of the clients’ purchase order.


2. Thread cannot fit clients’ barrel.

Repair or replace

3.Break down a piece from matrix, and the volume of the piece exceed 2mm*2mm*2mm, and such break is not caused by drilling.


4.Matrix falling not caused by drilling.

Replace or return

5.Groove on matrix caused by manufacturer.

Replace or return

6.Drilling speed is obvious slower than congener products caused by manufacturer.

Replace, and each item quantity does not exceed 3 pieces.

7.Bit life obvious short caused by manufacturer.

8.Breaking down of matrix, falling matrix, groove and short bit life caused by operating reasons-drill rod sticking, premature failure of the bit crown and hole bottom not to be cleaned.

Be excluded from Quality Guarantee

9.Short bit life or no penetration caused by drilling machine, drilling techniques or parameters.

10.Properly worn and the matrix is finished.

11.Thread damaged or distorted due to improper operation.

12.Steel Body cracked in drill

Replace or return

Reaming shell

1.Thread is not correct.


Replace or return


2.Steel body cracked in drill.

3.PCD strips falling.


If there are any other problems not contained in the above table, the settlement will be based on the negotiation between two parties. (DIYFIA and the Client)




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