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Needle Gauge Chart
| Chinese Gauge | Japanese Gauge | Actual Size (mm) Varies by Mfgr. |
| - | 00 | - |
| 40 | 0 | .14 |
| 38 | 1 | .16 |
| 36 | 2 | .18 |
| 34 | 3 | .20 |
| 32 | 5 | .25 |
| 30 | 8 | .30 |
| 28 | 10 | .32 |
All of the above vary by manufacturer, these are just general trends.