Size Chart

Gauge (G) / Post Thickness	Length / Internal Diameter
1mm = 18G	6mm = 1/4"
1.2mm = 16G	8mm = 5/16"
1.6mm = 14G	10mm = 3/8"
2.0mm = 12G	11mm = 7/16"
2.4mm = 10G	12mm = 1/2"
3.2mm = 8G	14mm = 9/16"
4m = 6G	16mm = 5/8"
5mm = 4G	18mm = 11/16"
6mm = 2G	19mm = 3/4"
8mm = 0G	21mm 13/16"
10mm = 00G

See how and where to apply these measurements on our handy pictorial guide.

Size Chart

Gauge (G) / Post Thickness	Length / Internal Diameter
1mm = 18G	6mm = 1/4"
1.2mm = 16G	8mm = 5/16"
1.6mm = 14G	10mm = 3/8"
2.0mm = 12G	11mm = 7/16"
2.4mm = 10G	12mm = 1/2"
3.2mm = 8G	14mm = 9/16"
4m = 6G	16mm = 5/8"
5mm = 4G	18mm = 11/16"
6mm = 2G	19mm = 3/4"
8mm = 0G	21mm 13/16"
10mm = 00G

See how and where to apply these measurements on our handy pictorial guide.