|
cir
|
diam
|
eu
|
usa
|
uk
|
|
48
|
15.30
|
8
|
4 ¾
|
I ½
|
|
49
|
15.60
|
9
|
5
|
J
|
|
50
|
15.90
|
10
|
5 ¼
|
K
|
|
51
|
16.23
|
11
|
5 ½
|
K ½
|
|
52
|
16.55
|
12
|
6
|
L ½
|
|
53
|
16.87
|
13
|
6 ¼
|
M
|
|
54
|
17.19
|
14
|
6 ¾-7
|
N
|
|
55
|
17.56
|
15
|
7 ¼
|
O
|
|
56
|
17.83
|
16
|
7 ½
|
O ½
|
|
57
|
18.14
|
17
|
7 ¾-8
|
P ½
|
|
58
|
18.46
|
18
|
8 ¼
|
Q
|
|
59
|
18.78
|
19
|
8 ¾
|
R
|
|
60
|
19.10
|
20
|
9
|
S
|
|
61
|
19.42
|
21
|
9 ½
|
S ½
|
|
62
|
19.74
|
22
|
9¾-10
|
T ½
|
|
63
|
20.05
|
23
|
10 ¼
|
U
|
|
64
|
20.37
|
24
|
10 ½
|
V
|
|
65
|
20.69
|
25
|
11
|
W
|
|
66
|
21.01
|
26
|
11 ¼
|
W ½
|
|
67
|
21.33
|
27
|
11 ¾
|
X ½
|
|
68
|
21.65
|
28
|
12
|
Y
|
|
69
|
21.96
|
29
|
12 ½
|
Z
|
|
70
|
22.28
|
30
|
12 ¾
|
Z+1
|
|
71
|
22.70
|
31.5
|
13 ½
|
Z+2
|
|
72
|
23.10
|
32.6
|
14
|
Z+3
|
|
73
|
23.25
|
33
|
14 ¼
|
Z+3+½
|
|
74
|
23.50
|
34
|
14 ½
|
Z+4
|
cir: internal circumference in mm
diam: internal diameter in mm
