2.00mm - US B - UK 14
2.25mm - - UK 12
2.50mm - US C - UK 12
2.75mm
3.00mm - US D - UK 11
3.25mm - - UK 10
3.50mm - US E - UK 9
3.75mm
4.00mm - US F - UK 8
4.50mm - US G - UK 7
5.00mm - US H - UK 6
5.50mm - US I - UK 5
6.00mm - US J - UK 4
6.50mm - UK 3
7.00mm - US K - UK 2
8.00mm - UK 0
9.00mm - UK 00
10.00mm - US P - UK 000
