China 70mm diamond mining rock drill bits with high quality

Specifications 1.Certified by API 9001

2.size:3"-26"

3.rubber or metal sealed bearing

4.long life and full model

5.MOQ: 1 pcs

China 70mm diamond mining rock drill bits with high quality TCI tricone bit(high thoughness and durablity stuiable for different rock formation)
1.high temperature and wear resistance
2.IADC code suitable for different formation
3.best price,quality Advantages: 1.our company had done this business for many years and won a good reputaion for our top quality products and excenllent service. 2.we produce the drill bits according to our customers requirements strickly with advanced equipment to make the quality perfect.(extend work life,wear resistance,self-sharpening....) 3.if you want to get more details,pls don't hesitate to contact me. Specifications:

IADC		437	517	537	617	637	737
WOB	KN/mm (bit dia.)	0.5-0.75	0.5-0.85	0.5-0.85	0.55-0.85	0.55-0.85	0.55-0.85
	Lb/in (bit dia.)	2860-4280	2860-4860	2860-4860	3140-4860	3140-4860	3140-4860
	r.p.m	70-45	70-45	70-45	70-45	60-40	60-40

2. please get back to my email address or call me: You can provide us the following information .   Bit size    Drilling formation   IADC CODE   Destination 3. You may have any questions ,please ask us freely .  Any inquiry is welcomed here  .   1) How to send money to us ?   We can send you our bank account information after the contract is made  .By T/T ,Western union ....   2) What is the MOQ ?   Small trial order is acceptable  ,like 1pc,2 pcs....   3) Inspection is possbile ?   Yes, you are welcome to our company at any time or you can make inspection through Third inspection agent ,like "SGS" ,BV and so on .   4)  How to transport the bits ?   By sea ,by air ,by DHL,by UPS  and so on ....   Do you have any questions ? Please don't hesitate to ask me and you will get the satisfactory response once you contact us .   4. Detail pictures and inspection pictures If you have any questions please contact me, Denise at your service at any time! We really would like to establish business relations with you, We will try our best to service for you!