| Customization: | Available |
|---|---|
| Customized: | Customized |
| Standard: | API |
|
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IADC
|
WOB(KN/mm Bit Dia.)
|
RPM(r/min)
|
Applicable Formations
|
|
435
515 |
0.20~0.70
|
200~80
|
Soft with very low compressive strength such as shale ,clay, sandstone ,soft limestone ,etc
|
|
535
|
0.35~0.80
|
200~80
|
Medium soft with low compressive strength and harder abrasive stringers ,such as hard shale ,hared gypsolyte, soft limestone,
sandstone and dolomite with stringer ,etc |
|
417
437 |
0.35~0.90
|
140~70
|
Very soft with low compressive strength and high drillability, such as shale, clay, sandstone and conglomerate ,etc.
|
|
517
527 |
0.35~1.05
|
120~50
|
Soft with low compressive strength, such as shale, clay, sandstone, soft limestone, salt bed and hard gypsolyte, etc
|
|
537
547 |
0.35~1.05
|
110~40
|
Medium soft with low compressive strength and harder abrasive stringers, such as hard shale, hard gypsolyte, soft limestone,
sandstone and dolomite with stringers ,etc |
|
617
627 |
0.35~1.05
|
80~40
|
Medium hard with high compressive strength and thick &hard stringers, such as hard shale, limestone, sandstone and dolomite, etc
|
|
637
737 |
0.70~1.20
|
70~40
|
Medium hard with high compressive strength and high abrasiveness ,such as limestone ,dolomite, sandstone and chert ,etc
|
|
Note: The upper limits of WOB and RPM in above table should not be used simultaneously
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Company Competitive Power:
1. At the forefront of the industry, we boast the most professional and seasoned senior engineers who bring a wealth of expertise to every project.
We guarantee the highest quality products that meet the rigorous demands of today's market.
2.MANUFACTURER Our strategic position allows us to offer a competitive price that remains unmatched in the industry.
3. Our business foundation is built on the integrity and dedication of our sincere salesmen.
4. We provide a diverse array of sizes and dimensions to cater to all client needs.
5. A substantial bulk stock ensures a rapid and efficient delivery process, exceeding client expectations.
6. We offer the finest after-sales service, ensuring complete customer satisfaction with every purchase.
Welcome to make an inquiry and visit our factory; we look forward to showcasing our excellence.
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