Rock Drilling Rig Tools Drilling Rod T38 T45 T51 




    Extension rods are made by hollow drill steels; There are two shapes of extension rods, round type and hexagonal type. This hollow hole are usually named flushing hole, used for transmitting water or air during drilling. And the threads can be used for connecting couplings, shanks, couplings or bits.
Usually for extension rods, there are R22, R25, R28, R32, R38, T38, T45, T51, ST58, T60 threads, and different lengths of rods are available from 600mm to 6400mm usually.
(1)Steel grade: Male-Male Rod, MF Rod
(2) Thread: R22, R25, R28, R32, R38, T38, T45, T51,
(3) Rod size: Hex. 22mm, hex. 25mm, hex. 28mm, hex. 32mm, hex. 35mm, dia. 39mm, dia. 46mm. Dia. 52mm
(3)Length: 0.4m-6m
(4)Package: In wooden case or in bundles.
(5)Productivity: 20000MT / month

Applications
Underground mining
Tunneling
Quarry

Quick Detail
T45 thread system
Widely used in drifting, tunneling, benching, and long hole drilling

Competitive Advantage
High strength chromium-molybdenum steel with high fatigue strength and excellent wear resistance