T38 Thread Speed Rod Mf Drill Piper Carburized Extension Drill Rod for Rock Drilling Rig

Bench and production drilling tools include rods, shank adapters, couplings and bits. We have mainly 7 threads: R3212, R32, HL38, T38, T45, T51, T60, ST58 and ST68. They can be used with button bits, cross bits and reaming products.
Drifter rod, other names are tunneling steels, tunneling rod, drifting drill rod, has round and hexagon shapes available, most of drifting drill steel with drill steel hexagon is for tunneling and drifting drilling application. Hexagon rods of rock drilling tools are more rigid, heavier and transfer energy more efficiently, while increasing  flushing. 

Extension rod, other names are Extension drill steel, Extension drill rod, and Extension steel, M/F rod ( Speed rod ) , 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. 

(1)Steel grade: Male-Male Rod, MF Rod,23CrNi3Mo
(2) Thread: R3212, R32, HL38, T38, T45, T51, T60, ST58 and ST68
(3) Rod size : dia.32,dia.39,dia.46,dia.52 and etc.
(3)Length: 0.4m-6m
(4)Package: in wooden case or in bundles.
(5)Productivity: 20000MT / month