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

110

110

123

179

186.5

198.5

208.5

232

260

356

B

53

53

60

81.3

88.5

99.5

110.5

131

159

220

C

42

42

47

58

66.5

78

92

109

138

199

D

7.5

7.5

12

14

16

18

18

23

24

30

L

36

36

43

51

52

59

64

65

70

82