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MF Extension Rod Guide Tube Threaded Drill Rod
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Description:

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.

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Product Detail
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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

Extension Rod Specifications
Dimensions
Length
mm
Length
ft
Diameter
mm
Diameter
in
Part Number
3660 12 60 2 3/8" 4148301800
4265 14 60 2 3/8" 4148301801
6095 20 60 2 3/8" 4148301802
4265 14 64 2 1/2" 4148301803
4265 14 87 3 1/2" 4148301804
5335 17 76 3" 4148301805
Drill bits Specifications
Bit Dia. Buttons and Size (mm) Flushing Hole Weight Part Number
mm Front Gauge Front Side kg
102 6x14 8x14 2 - 8.7 4148301806
105 6x14 8x14 2 - 8.9 4148301807
110 6x14 8x16 2 - 9.4 4148301808
115 6x14 8x16 2 - 9.6 4148301809
127 4x14, 3x14 8x16 4 - 10.8 4148301810
152 8x14 9x16 3 - 16.2 4148301811
product Picture

Package

transportation

OUR SERVICE
☑ We will provide more precisely and efficiently manufacture and serve according to clients' drawings.
☑ We have professional QC team to ensure your product more better.
☑ Check the raw material before starting production.
☑ Have the random inspection during the processing.
☑ Make the 100% inspection before the shipments.
WHY ARE YOU CHOOSE US
☑ We have been engaged in tapered cross bit for more than 20 years.
☑ apered cross with conical pipe drilling perfect;
☑ Reliable work, high cost performance;
☑ Accurate the dimension of taper degree perfectly matches the rods;
☑ High grade tungsten carbide inserts;
☑ The drill bit is made of high quality steel and uses the most advanced CNC machinery and heat treatment process.
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  • Jack 13:15.PM  Oct.14,2022
    Hello, dear sir/madam, welcome to our website! I’m Jack,how should I address you?