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1.Gauge size or thickness in millimetres
2.Diameter size or length in millimetres
3.Ball size in millimetres
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Gauge
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Inches
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Millimetres
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18G
|
.040"
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1.0mm
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|
16G
|
.050"
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1.2mm
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14G
|
.064"
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1.6mm
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12G
|
.082"
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2.0mm
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10G
|
.102"
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2.5mm
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8G
|
.125"
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3.0mm
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6G
|
.162"
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4.0mm
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4G
|
.204"
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5.0mm
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2G
|
.250"
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6.0mm
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|
0g
|
.312"
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8.0mm
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|
00g
|
.375"
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10.0mm
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Barbell length is measured beween the balls
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Barbell Length & Diameter Chart
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| Inches |
Millimetres |
| 1/4 |
6.4 |
| 5/16 |
7.9 |
| 3/8 |
9.5 |
| 7/16 |
11.1 |
| 1/2 |
12.7 |
| 9/16 |
14.3 |
| 5/8 |
16 |
| 3/4 |
19 |
| 7/8 |
22 |
| 15/16 |
23 |
| 1 |
25.4 |
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