Product Details
Drill Pipe Sub for Connection API Standard Tricone Bit Cross Over
Subs
Description:
Cross-over sub acts for conversion and connection of drill stem
component in petroleum,
natural gas and geology drilling work.
It is used mainly for connecting of upper drill tools and lower
drill tools during drilling operations.
Cross-over sub is API standard Material is AISI 4145H
chromium-molybdenum steel.
We can offer Kelly cross-over sub, Drill pipe cross-over sub,
Interim cross-over sub, Drill collar cross-over sub, Drill bit
cross-over sub, Swivel cross-over sub,
Fishing cross-over sub, etc.
Cross over subs come in three basic styles:
A: Pin (male) x Box (male) B: Pin (male) x Pin (female) C: Box
(female) x Box (female)
Technical specification and parameters for Cross-over Sub |
Sort | Description | Upper Connection Part | Lower Connection Part | Type |
1 | Kelly cross-over sub | Kelly | Drill pipe | A or B |
2 | Drill pipe cross-over sub | Drill pipe | Drill pipe | A or B |
3 | Interim cross-over sub | Drill pipe | Drill collar | A or B |
4 | Drill collar cross-over sub | Drill collar | Drill collar | A or B |
5 | Drill bit cross-over sub | Drill collar | Drill bit | A or B |
6 | Swivel cross-over sub | Swivel lower sub | Kelly | C |
7 | Fishing cross-over sub | Kelly | Drill pipe | C |
Drill pipe | Fishing tools |
|
Company Profile

KSQ Technologies (Beijing) Co. Ltd. provides exceptional technical know-how in development, prodcution,
and application. The company has adopted advanced manafacturing
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
beyound industry expectations.
The MIROC® Rock Drilling Tools product line by KSQ Technologies (Beijing) Co.Ltd. is the result of years of advanced engineering, precision
manufacturing, and dedication to the use of high-quality materials.
MIROC® Rock Drilling Tools are used by many drilling professionals
related to mining, construction, tunneling, and quarrying projects
around the globe.
MIROC® Rock Drilling and Ground Support Tools include:
Top Hammer Drilling Tools
Tapered Drilling Tools
Down-the-hole (DTH) Bits
Down-the-hole (DTH) Hammers
Down-the-hole (DTH) Drill Pipes
Diamond Core Drilling Tools
Integral Drill Steel
Plug Hole Rods
Drifting and Tunneling Tools
Reaming Tools
Shank Rods
Shank Adapters (Striking Bars)
