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Metric Conversion

 Gauge Millimeters Length / Diameter Millimeters
20g 0.8mm 5/16” 8mm
18g 1.0mm 3/8” 10mm
16g 1.2mm 7/16” 11mm
14g 1.6mm 1/2” 12mm
12g 2.0mm 9/16” 14mm
10g 2.4mm 5/8” 16mm
8g 3.2mm 3/4” 19mm
6g 4mm 7/8” 22mm
4g 5mm 1” 25mm
2g 6mm 1  1/8” 29mm
0g 8mm 1  1/4” 32mm
00g 10mm 1  3/8” 35mm
1/2" 12.5mm 1  1/2” 38mm
9/16" 14mm 1  5/8” 41mm
5/8" 16mm 1  3/4” 44mm
3/4" 19mm 1  7/8” 48mm
7/8" 22mm 2” 51mm
1" 25mm
1  1/4" 32mm
1  3/8" 35mm
1  1/2" 38mm
1  3/4" 44mm
2" 51mm