3700mm T38-H35-R32 MF Extension Drill Rod For Tunneling Hard Rock

3700mm T38-H35-R32 MF Extension Drill Rod For Tunneling Hard Rock

Product features:

Extension rod, other names are Extension drill steel, Extension drill rod, and Extension steel, M/F rod ( Speedrod ) , Produce Hexagonal and round cross sections, Hexagon rods are more rigid, heavier and transfer energy more efficiently, while increasing flushing. Round rods are generally lighter than hexagonal rods and are normally used in extension drilling applications. With the longer steel tending to be larger in diameter, conventional extension steel is characterized by a duplicate thread on each end of the steel.

Specifications:

Adavantages:

• High-quality raw material
• Processed by CNC machinery and heat treatment
• High wear resistance

Applications:

Tunnelling , mining , quarrying, blasting and infrastructure construction.

Package:

Wooden case or in bundles.