N80 R780 S135 Steel Material DTH Drilling Tools Water Well Casing Pipe
N80 R780 S135 Steel Material DTH Drilling Tools Water Well Casing Pipe
Product Description:
1: OD: 89mm ( 3 1/2 inch) thread drill pipe
2: Connection:90mm/95mm/105mm
3: Grade: E75/R780/N80
4: Length: 9meters or as your requirement
5: Suitable for water well, geothermal well, gas well
6: Safe drilling depth: Within 800 meters
7: Tool joint:35GrMo/40Cr/4137H
Specification:
1.Drill Pipe Spec:
| Drill pipe diameter(inch) | Thickness type | steel grade | Pipe wall thickness | connection tool joint diameter(mm) | Thread | Weight(KG) |
| 1.6" | EU | D250 | 6.5 | ɸ57 | 1:16 | 5.7 |
| R780 | 6.5 | |||||
| 2" | EU,IU | D250 | 6.5 | ɸ65,ɸ68 | 1:16 | 7 |
| N80,R780 | 6.5 | |||||
| 2 3/8" | EU,IU | E75,R780 | 7 | ɸ75,ɸ78 | NC26 | 9.4 |
| N80,R780 | 7.11 | |||||
| 2 7/8" | EU,IU | N80,R780 | 9 | ɸ95,ɸ105 | NC31 | 14.2 |
| E75,G105 | 9.11 | |||||
| 3 1/2" | EU,IU | N80,R780 | 9.5/10 | ɸ121,ɸ127 | NC38 | 19 |
| E75,G105 | 9.3 |
2.Connection tool joint specification:
| Diameter(mm) | Thread Specification | Male Thread | Female Thread | ||||||
| OD | ID | Thread Type | Tooth/inch | conical degree | Y.S | DS | DF | QF | Length |
| 121 | 68 | NC38(3 1/2" IF) | 4 | 1:06 | 285 | 86.13 | 71.32 | 87.7 | 104.8 |
About us
KSQ Technologies (Beijing) Co. Ltd. provides exceptional technical know-how in development, production, and application. The company has adopted advanced manufacturing processes to ensure high quality steels and tungsten carbide inserts for its rock drilling accessories. Its personnel understand clients’ drilling needs, and have the service skills to recommend the right drilling tools for the job. Its experienced product developers can also create custom tools. Furthermore, the company’s development team introduces innovative products each year – tools that are rigorously tested in the field and proven
to perform beyond industry expectations.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.