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MF Extension Rod

Product Details: 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...
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Product Details:

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.

we are able to supply full range of extension rods in different lengths with various threads shown as below.

Thread size: R25, R28, R32, R38, T38, T45, T51.

Rod size: Round 32, Round 39, Round 46, Round 52, Length: 915mm to 5450mm.

Rod size: Hex 25, Hex 28, Hex 32, Hex 35, Length: 610 mm to 6400mm.

 Rods
 Dimension

  Length

Driven Thread

Suitable Bits
 Thread

    Drilling Hole Range

M-F

mm

foot

mm

inch

Hex.25

610~1220

2~4

R25, R28, R32

 R25

33~51

1 19/64~2

Hex.28

1220~3050

4~10

R28, R32, R38

R28

37~51

1 29/64~2

Hex.32

2475~5525

8~18

R28, R32, R38,    T38

R32

40~64

1 37/64~2 1/2

Hex.35

3700~6400

12~21

R32, R38, T38

R32

45~76

1 3/4~3

Round 32

915~4270

3~14

R32, R38, T38

R32

45~64

1 3/4~2 1/2

Round 39

610~6095

2~20

R38, T38, T45

T38, T45

57~89

2 1/4~3 1/2

Round 46

1525~6095

5~20

T38, T45, T51

T45, T51

70~102

2 3/4~4

Round 52

1525~6095

5~20

T45,  T51

T45, T51

76~127

3~5

 

How to order?
Length + Thread + Body Shape and Diameter


FAQ:

1. How to order the products?

A: Please send the inquiry with detail item description or with Model number.


2. Can I expect a quality products?

A: Yes. mature production technology ensuring the quality satisfy international request.


3. How to check the product are the exact one you want?

A: If possible, please attach one reference picture to avoid any misunderstanding or any links from ourwebsite for a better understanding.

 

4. Fast delivery time:

A: Usually it takes 25 days for production.only 3 or 5 days if we have stock of your request size.

 

5. Shipping way:

A: Sample order: we suggest Courier express delivery such as DHL/UPS/TNT/FEDEX or by air

Bulk order: by air or by sea we suggest.

 

6. Competitive price:

A:KINGDRILLING factory can supply you the lowest price due to direct sale to customers without distributor!

 


Hot Tags: MF extension rod, China, manufacturers, price, in mining, made in China
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