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Code No

METRIC (mm)

 

Available

Pitch

OD

Depth

Thread Length

Shank Length

Flush hole

M2

0.40

1.10

0.22

55

25

 

M2.5

0.45

1.55

0.25

55

25

 

M3

0.50

2.00

0.27

55

25

 

O

M4

0.70

2.80

0.38

55

25

 

O

M5

0.80

3.70

0.43

55

25

 

O

M6

1.00

4.50

0.54

55

25

 

O

M8

1.25

6.30

0.68

55-75

25

 

O

M10

1.50

8.00

0.81

55-75

25

 

O

M12

1.75

9.70

0.95

55-75

25

 

O

M14

2.00

11.50

1.08

55-75

25

 

O

M16

2.00

13.50

1.08

55-75

25

 

O

M18

2.50

15.00

1.35

55-75

25

 

O

M20

2.50

17.00

1.35

55-75

25

 

O

 

Code No

Thread No.

INCH(")

Available

OD

Depth

Thread Length

Shank Length

Flush hole

1

64

0.0540

 

2-1/4

1.00

 

 

2

56

0.0670

 

2-1/4

1.00

 

 

3

48

0.0800

 

2-1/4

1.00

 

Developing

4

40

0.0930

 

2-1/4

1.00

 

"

4

48

0.0930

 

2-1/4

1.00

 

"

5

40

0.1060

 

2-1/4

1.00

 

"

6

32

0.1190

 

2-1/4

1.00

 

"

8

32

0.1450

 

2-1/4

1.00

 

"

10

24

0.1710

 

2-1/4

1.00

 

"

10

32

0.1710

 

2-1/4

1.00

 

"

12

24

0.1970

 

3-1/4

1.00

 

"

12

28

0.1970

 

3-1/4

1.00

 

"

1/4

20

0.2310

 

3-1/4

1.00

 

"

5/16

18

0.2935

 

3-1/4

1.00

 

"

5/16

24

0.2935

 

3-1/4

1.00

 

"

3/8

16

0.2793

 

3-1/4

1.00

 

"

3/8

24

0.3049

 

3-1/4

1.00

 

"

7/16

14

0.3309

 

3-1/4

1.00

 

"

7/16

20

0.3572

 

3-1/4

1.00

 

"

1/2

13

0.3866

 

3-1/4

1.00

 

"

1/2

20

0.4197

 

3-1/4

1.00

 

"

 
     
 
 
  Tapping electrode is very important element to drill and tap for very hard metals, tight tolerance and high productivity demands.
Our tapping electrode is producted through special cutting-process for thread by CNC machine. The quality will be compared with a rolling system in straightness and tolerance of outer diameter.Our product always will be preserved the superior straigtness, pitch and outer diameter exactly.
 
     
 
 
  a) Straightness : 97%
b) Tolerance of pitch, outer diameter and length : 0 ~ + 0.02mm
c) Material : Copper Tungsten, Copper graphite - EDM C3
d) Shape : With Flushing Hole, Without Flushing Hole
e) Process : Cutting thread system with single point tool by CNC M/C, not Rolling system
 
     
     
 
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