Sizing
This is a Standard to Metric conversion chart
inches – mm inches – mm
1/16″ – 2 mm 1″ – 25 mm
1/8″ – 3 mm 2″ – 51 mm
1/4″ – 6.5 mm 3″ – 76 mm
5/16″ – 8 mm 4″ – 101 mm
3/8″ – 9.5 mm 5″ – 127 mm
7/16″ – 11 mm 6″ – 153 mm
1/2″ – 13 mm
5/8″ – 16 mm
3/4″ – 19 mm
7/8″ – 22 mm
15/16″ – 24 mm