| Metric (mm) |
British |
American |
| 2 |
14 |
00 |
| 2.25 |
13 |
0 |
| 2.75 |
12 |
1 |
| 3 |
11 |
2 |
| 3.25 |
10 |
3 |
| 3.75 |
9 |
4 |
| 4 |
8 |
5 |
| 4.5 |
7 |
6 |
| 5 |
6 |
7 |
| 5.5 |
5 |
8 |
| 6 |
4 |
9 |
| 6.5 |
3 |
10 |
| 7 |
2 |
10.5 |
| 7.5 |
1 |
11 |
| 8 |
0 |
12 |
| 8.5 |
00 |
13 |
| 9 |
000 |
15 |
|
|
| Metric (mm) |
British |
American |
| 0.60 |
|
|
| 0.75 |
|
|
| 1.00 |
|
|
| 1.50 |
|
|
| 1.75 |
|
|
| 2 |
14 |
|
| 2.25 |
13 |
|
| 2.5 |
12 |
B |
| 3 |
11 |
C |
| 3.25 |
10 |
D |
| 3.5 |
9 |
E |
| 4 |
8 |
F |
| 4.5 |
7 |
G |
| 5 |
6 |
H |
| 5.5 |
5 |
H |
| 6 |
4 |
I |
| 6.5 |
3 |
J |
| 7 |
2 |
K |
| 7.5 |
|
|
|