SIZE

inch

1/2

3/4

1

11/4

11/2

2

21/2

3

4

6

mm

15

20

25

32

40

50

65

80

100

150

A

32

32

36.6

45

53.4

63

75.7

91.5

119.5

176

B

34.5

34.5

39

48

56

65.3

80

96

122

188

C

15

21.4

27.4

34

40.5

53

66.5

79

104.8

157

D

8

14

20

25

31

43

55

68

92

140

E

45

54

60

61

64

78

85

101.6

110

141

L

85

94

106

115

120

140

150

165.1

180

220