
T38 Thread Extension Drilling Rod for Drilling Rocks
Xiamen Bestlink Factory Co., Ltd.- Length:3m
- Usage:Mining and Quarrying
- Material:High Manganese Steel
- Controlling Mode:Artificial
- Precision:Normal Precision
- Hole Diameter:<50mm
Base Info
- Model NO.:T38
- Automatic Grade:Manual
- Structure:Deep Hole Drilling
- Layout:Vertical
- Condition:New
- Number of Shaft:No
- MOQ:50PCS
- Brand:Bestlink
- Transport Package:Woonden Box
- Specification:CE
- Trademark:BESTLINK
- Origin:Xiamen
- HS Code:72288000
- Production Capacity:50000PCS,Month
Description
R25 RodHex25 R25-Hex25-R25 610mm, 915mm, 1220mm, 1525mm,1830mm,2435mm, 3050mm, 3660mm R32-Hex25-R25 1830mm,2130mm,2475mm,2795mm,3090mm,3700mm Hex28 R32-Hex28-R25 3090mm, 3700mm R38-Hex28-R25 R28 Rod Hex28 R32-Hex28-R28 2475mm,2590mm,3090mm,3700mm,4005mm,4305mm R38-Hex28-R28 3090mm, 3700mm,4305mm R32 Rod Hex32 R32-Hex32-R32 2475mm,3090mm,3700mm,4305mm R38-Hex32-R32 2475mm, 3090mm,3700mm, 4005mm,4305mm, 4610mm,4915mm T38-Hex32-R32 4305mm Hex35 R38-Hex35-R32 3090mm,3700mm,4305mm,4915mm,5525mm T38-Hex35-R32 3090mm,3700mm,4305mm,4915mm,5525mm,6135mm T38-Hex35-R32 MF-rod 3090mm,3700mm,4305mm,4915mm,5525mm,6140mm RD39 R38-RD39-R32 4305mm T38-RD39-R32 4305mm,4915mm,5525mm,6135mm
Male/Female (M/F) rod, speed rod
M/F drill steel is an alternative to couplings sleeves to include the female part of the threaded connection as an integral part of the drill steel. M/F drill steel provides more rigid connections and is easier to uncouple and handle. The service life also tends to be better than with separate couplings. The advantages of drilling with M/F steel include: Easy handling, quicker uncoupling, tighter connections, the potential to drill straighter holes, and longer service life.
For Extension Rod and M/F steel process, the below two different types of heat treatment are used to strengthen high speed and powerful percussive drill string components to maximize their performance and reliability. Longer steel larger in diameter, conventional extension steel, Hexagonal and round cross sections are available.
- Carburization is a process used to harden the entire rod surface both internally and externally to strengthen and extend the life of the rod.
- High Frequency Induction is a process where only the thread ends of the rod are hardened to lengthen thread life.





Male/Female (M/F) rod, speed rod
M/F drill steel is an alternative to couplings sleeves to include the female part of the threaded connection as an integral part of the drill steel. M/F drill steel provides more rigid connections and is easier to uncouple and handle. The service life also tends to be better than with separate couplings. The advantages of drilling with M/F steel include: Easy handling, quicker uncoupling, tighter connections, the potential to drill straighter holes, and longer service life.
For Extension Rod and M/F steel process, the below two different types of heat treatment are used to strengthen high speed and powerful percussive drill string components to maximize their performance and reliability. Longer steel larger in diameter, conventional extension steel, Hexagonal and round cross sections are available.
- Carburization is a process used to harden the entire rod surface both internally and externally to strengthen and extend the life of the rod.
- High Frequency Induction is a process where only the thread ends of the rod are hardened to lengthen thread life.




