Size |
A |
B |
1/8” |
17 |
16 |
1/4” |
18.5 |
19 |
3/8” |
21.8 |
23 |
1/2” |
26.5 |
28 |
3/4” |
30 |
32.5 |
1” |
36 |
40 |
1-1/4” |
42.5 |
49.5 |
1-1/2” |
47 |
56 |
2” |
55 |
68.5 |
2-1/2” |
68 |
91 |
3” |
78 |
108 |
4” |
96 |
137 |