Sizing Chart

8mm / 0.31” / approx. 5/16”
10mm / 0.39” / approx. 3/8”
12.5mm / 0.49” / approx. 1/2”
15.5mm / 0.61” / approx. 5/8”
18.5mm / 0.73” / approx. 3/4”
25mm / 0.98” / approx. 1”
32mm / 1.26”/ approx. 1-1/4”
38mm / 1.5” / 1-1/2”
44mm / 1.73” / approx. 1-3/4”