Description

GT60 MF Extension Rod Guide Tube Threaded Drill Rod

Extension rods

Extension rods are one major spare part in terms of drill application area, there are two shapes of extension rods, one is round type, another one is hexagonal type.

But all extension rods are threaded and made by hollow drill steels, this means usually extension rods are hollow.This hollow hole are usually named flushing hole, used for transmitting water or air during drilling. Two ends threads can be used for connecting couplings, shanks, couplings or bits. Typically two ends of extension rods are male, while sometime one end is male and another one is female, then we call it M/F rod. We need couplings to connect extension rods, while for M/F rods, because one end is female, so couplings are not necessary.

Extension rod & MF rod

R32,R38,T38,T45,T51,GT60 thread extension rod &MF rod .

(1) Threaded connection:R22,R25,R32,R38,T38,T45,T51 and so on .

(2) Diameter:OD32mm,OD38mm,Hex32,Hex35mm and so on .

(3)Length:600-6400mm.

(4)Package:Wooden case or wrapped with palstic knitting and then packed into bundles or as per your requests .

Different types of drill rods

Type:Hex.Drifter Rod,Extension Rod,Speed Rod ,MF Rod

Color:Based on customer ruquirments

Material:Tungsten Carbide and high strength alloy steel

Processing:CNC milling and proprietary heat treatment process

Applications:

• Underground mining

• Tunneling,quarrying

•Widely used in benching, and long hole drilling

GT60 Extension RodSpecification

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