Round With Collar
Sizing
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| US No | 802 | 802 | 802 | 802 | 802 | 802 |
| Diameter | 012 | 012 | 014 | 014 | 016 | 018 |
| International Ref | BC-43 | BC-42 | BC-31 | |||
| Head Length (MM) | 2.1 | 2.2 | 2.3 | 2.4 | 2.5 | 2.2 |
| overall Length (MM) | 19 | 16 | 19 | 16 | 19 | 19 |
| medium | • | • | • | • | • | • |