Soprano Facing Chart

3 1.3 mm .051 inch
4 1.4 mm .055 inch
5 1.5 mm .059 inch
6 1.6 mm .063 inch
7 1.7 mm .067 inch
8 1.8 mm .071 inch
9 1.9 mm .075 inch
10 2.0 mm .080 inch