اینچ اندازه

D1

D6

D7

0.750

21.6

34.8

44.5

0.875

24.8

38.0

47.7

1.000

28.0

41.2

50.8

1.125

31.1

44.3

54.0

1.187

32.7

45.9

55.6

1.250

34.3

47.5

57.2

1.375

37.5

50.7

60.3

1.500

40.7

57.0

66.7

1.625

43.8

60.2

69.9

1.750

47.0

63.4

76.2

1.875

50.2

66.5

79.4

2.000

53.4

69.7

82.6

2.125

56.5

72.9

88.9

2.250

59.7

76.1

92.1

2.375

62.9

79.2

95.3

2.500

66.0

82.4

101.5

2.625

69.2

85.6

104.8

3.000

78.0

93.5

121.0