It is suitable for sidetracking, deep well drilling and old well repairing.
1 Two watercourse can improve washing endurance and prevent mud.
2 Silver-plated at sliding surfaces of cone bearing to strength self-lubricating effect, and improve the bearing of wear-resisting life.
3 The bit inlaid with diamond compact teeth can be more effectively improve working life.
4 Two advanced high-saturated buna-N rubber seal rings are used for journal and bearing pin sealing, which ensured the high reliability of the bearing seal structure.
5 The bearing is improved by applying hard facing layer on head bearing surface, extended working life.
| size(in) |
site (mm) |
| 3 3/4 |
95.3 |
| 4 |
101.6 |
| 4 1/8 |
104.8 |
| 4 1/2 |
114.3 |
| 4 5/8 |
117.5 |
| 4 3/4 |
120.7 |
| 5 7/8 |
149.2 |
| 6 |
152.4 |
| 6 1/8 |
155.6 |
1. How to order the products?
Answer:
Send the inquiry with detail item description or with Model number.
If there is no packing demand we take it as sea-way packing.
If possible please attach one reference picture to avoid any misunderstanding or any links from our website for we get a better understanding.
2. About lead time and shipping time?
Answer :
The lead time depend on quantity of order. Usually shipped by sea, small order or urgent order we can send you by air after received your agreement.
According the distance from china to your port, usually from China to European about 25 days. To West of American 20 days.
3.Can I expect a quality products?
Answer :
Yes. All our activities are accredited to ISO 9001:2008 and API, both in products and services, at the same time, mature production technology ensuring the quality satisfy international request.
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