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T38 T45 T51 MF Speed Drifter Extension Drill Rod

T38 T45 T51 MF Speed Drifter Extension Drill Rod 

Extension Drill Rod

Drifting and extension drill rods are for in drifting, tunneling, long-hole drilling, bench and production drilling industries. These rods are produced with round or hexagonal sections in all common thread designs, and in Male/Male (M/M) or Male/Female (M/F) connections. All our drifting and extension drill rods are heat-treated with carburization or high frequencycombinated with phosphorization.

 MF Speed Drifter

M/F rods provides tighter connections and is easier for handling and quicker for uncoupling than M/M rods, and are potential to drill straighter holes.

M/F rodsCarburization technique is mainly used in the production of big diameter rods to ensure excellent performance. Carburizing is for hardening entire rod to provide an external over entire rod surface area. Carburized steels are used primarily in underground applications and where water is used as a flushing medium. High Frequency technique is primarily used in the production of small diameter rods to reduce fragileness of drill steels. High Frequency is for hardening only the thread ends of the rod. This provides the longevity of the product as well as being more suitable for more drilling condition need. Steels produced with this technics primarily used in surface drilling applications where air is the primary flushing medium. Phosphorising is to improve anti-erosion capability of the entire external rod surface area.

Specification Overview:

Rods Dimension

Length

Driven Thread

Suitable Bits Thread

Drilling Hole Range

M-M

M-F

mm

foot

mm

foot

mm

inch

Hex.25

915 ~ 3700

3 ~ 12

610 ~ 1220

2 ~ 4

R25, R28, R32

R25

33 ~ 51

1 19/64 ~ 2

Hex.28

2100 ~ 4920

6 3/4 ~ 16

1220 ~ 3050

4 ~ 10

R28, R32, R38

R28

37 ~ 51

1 29/64 ~ 2

Hex.32

2400 ~ 5530

7 7/8 ~ 18

 

 

R28, R32, R38, T38

R32

40 ~ 64

1 37/64 ~ 2 1/2

Round32

915 ~ 4310

3 ~ 14

915 ~ 4270

3 ~ 14

R32, R38, T38

R32

45 ~ 64

1 3/4 ~ 2 1/2

Hex.35

2670 ~ 6100

8 5/8 ~ 20

3700 ~ 6400

12 ~ 21

R32, R38, T38

R32

45 ~ 76

1 3/4 ~ 3

Round39

610 ~ 6095

2 ~ 20

610 ~ 6095

2 ~ 20

R38, T38, T45

T38, T45

57 ~ 89

2 1/4 ~ 3 1/2

Round46

1830 ~ 6095

6 ~ 20

1525 ~ 6095

5 ~ 20

T38, T45, T51

T45, T51

70 ~ 102

2 3/4 ~ 4

Round52

3050 ~ 6095

10 ~ 20

1525 ~ 6095

5 ~ 20

T45, T51

T45, T51

76 ~ 127

3 ~ 5

 


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

Categories

Contact Us

Contact: sales@superdrill.com.cn

Phone: 18186993613

Tel: 0713-8906693

Company: Hubei Superdrill Equipment Co.,Ltd

Add: Building 3, Rainbow road,No.188 ; wuhan ;Hubei province