top width:

0.3750 in
0.5000 in
0.6563 in
0.8750 in
1.2500 in
1.3125 in
1.5000 in
1.7500 in
1.8750 in
1.9689 in
2.6250 in
3.1250 in
3.2815 in
5.0000 in