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MF Extension Rod

Categories Rock Drilling Tools
Place of Origin: China
Brand Name: SANSUNG
Model Number: T45-Round46-T45
Certification: ISO SGS
MOQ: 50 pcs
Price: US$0/pc
Packaging Details: wooden box
Delivery Time: 20 days
Payment Terms: T/T
Supply Ability: 2000 PCS per week
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MF Extension Rod

For extension rod, there are two shapes, one is round type, and another one is hexagonal type. All extension rods are threaded and made by hollow drill steels.

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 size:

R32-Round32-R32

length 3 4 6 8 10 12 feet

T38 (R38)–Round39-T38 (R38)

length 4 6 10 12 feet

T45-Round46-T45

length 10 12 14 20 feet

T51 -Round52-T51

length 12 14 20 feet

MF rod/speed rod size:

MF-rod R32-Round32-R32

length 3 4 5 6 10 12 14 feet

MF Rod T38-Round39-T38

length 4 5 6 10 12 14 feet

MF Rod T45-Round46-T45

length 5 6 10 12 14 20 feet

MF Rod T51-Round52-T51

length 6 12 14 20 feet

MF Rod ST58-Round60-ST58

length 12 14 20 feet



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