ขนาด
inch

วงนอก
mm

น้ำหนัก        kg

0.9
mm

1.2
mm

1.6
mm

2.0
mm

2.3
mm

3.0
mm

3.2
mm

3/8

9.5

1.1

-

-

-

-

-

-

1/2

12.7

1.6

2.1

-

-

-

-

-

5/8

15.9

2.1

2.6

-

-

-

-

-

3/4

19.1

2.4

3.2

4.6

-

-

-

-

7/8

22.2

2.9

3.8

5.1

6.0

-

-

-

1

25.4

3.4

4.3

5.6

6.9

-

-

-

1 1/8

28.6

3.7

4.9

6.4

7.9

8.9

-

-

1 1/4

31.8

4.0

5.3

6.7

8.8

9.9

-

-

1 3/8

34.9

4.6

6.1

8.0

10.0

11.3

-

-

1 1/2

38.1

4.9

6.5

8.1

10.1

11.5

-

-

1 5/8

41.3

5.4

7.1

8.6

11.8

13.2

17.0

-

1 3/4

44.5

5.7

7.5

9.4

12.9

14.5

18.7

-

1 7/8

47.6

6.2

8.1

10.0

13.4

15

19.3

-

2

50.8

6.5

8.5

10.8

14.3

16.3

21.2

22.4

2 1/4

57.2

7.3

9.5

12.2

16.7

18.9

24.1

25.5

2 3/8

60.4

8.1

10.5

13.3

17.6

20

25.5

27.0

2 1/2

63.5

8.9

11.5

14.6

18.7

21

26.9

28.5

3

76.2

10.1

13.2

17.2

22

26.0

33

34.8