Tum

Tum mm
5/16 7.9
11/32 8.7
3/8 9.5
7/16 11.1
1/2 12.7
9/16 14.3
5/8 15.9
11/16 17.5
3/4 19.1
13/16 20.6
7/8 22.2
15/16 23.8
1 25.4
1-1/16 27.0
1-1/8 28.6
1-3/16 30.2
1-1/4 31.7