公称直径 

螺距    

钻头直径 

公称直径 

螺距    

钻头直径 

2

0.4

2.3

22

2.5

24.0

2.5

0.45

2.9

22

2

23.6

3

0.5

3.4

22

2

23.6

3.5

0.6

4.0

22

1.5

23.2

4

0.7

4.6

24

3

26.4

5

0.8

5.6

24

2

25.6

6

1

6.8

24

1.5

25.2

7

1

7.8

26

1.5

27.2

8

1.25

9.0

27

3

29.4

8

1

8.8

27

2

28.6

9

1.25

10.0

27

1.5

28.2

10

1.5

11.2

28

1.5

29.2

10

1.25

11.0

30

3.5

32.8

10

1

10.8

30

2

31.6

11

1.5

12.2

30

1.5

31.2

12

1.75

13.4

33

3.5

35.8

12

1.5

13.2

33

2

34.6

12

1.25

13.0

33

1.5

34.2

12

1

12.8

36

4

39.2

13

1.25

14.0

36

3

38.4

14

2

15.6

36

2

37.6

14

1.5

15.2

36

1.5

37.2

14

1.25

15.0

39

4

42.2

14

1

14.8

39

3

41.4

16

2

17.6

39

2

40.6

16

2

17.6

48

3

50.4

16

1.5

17.2

42

3

44.4

18

2.5

20.0

42

1.5

43.2

18

2

19.6

48

3

50.4

18

1.5

19.2

56

4

59.2

20

2.5

22.0

60

3

62.4

20

2

21.6

60

4

63.2

20

1.5

21.2