| Customization: | Available |
|---|---|
| Type: | Roller Bit |
| Application: | Drilling Doundation |
|
Still deciding? Get samples of US$ 1000/Piece
Request Sample
|
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
Main Features
| IADC | RECOMMENDED SPECIFICATION |
APPLICABLE FORMATIONS | ||
| WOB (KN/mm) | ROP (r/min) | HARDNESS | FORMATIONS | |
| 417 | 0.20-0.60 | 140-60 | medium | shale, clay, sandstone, soft limestone etc. low compressive strength and high drillability |
| 437 | 0.35-0.95 | 140.60 | medium | shale, clay, sandstone, conglomerate etc. low compressive strength and high drillability |
| 517 | 0.35-1.00 | 140-60 | medium hard | shale, clay, sandstone,soft limestone low compressive strength and high drillability |
| 537 | 0.35-1.05 | 120-50 | medium hard | hard shale, hard gypsum, soft limestone, dolomite medium hard stringers and high compressive strength |
| 617 | 0.50.1.05 | 110-40 | hard | hard shale, limestone, sandstone, dolomite, etc. medium stringer and high compressive strength |
| 637 | 0.50-1.05 | 80-40 | hard | limeston, dolomite, flintstone,etc. medium hard and high compressive strength |
| 737 | 0.60-1.10 | 80-40 | very hard | quartzite, chert, basalt granites, pyrits, etc |
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.
3. What warranty do we provide?
Ans.: We provide 6 months warranty time.
4. What is the lead time?
Ans.: Usually the lead time is 7-10 days after receipt of your payment.
5.What payment terms do we accept?
Ans.: We accept T/T in advance or L/C at sight.
){kind=link}