![ALLARGA-STRINGI VIROLE BERGEON N°3007 ALLARGA-STRINGI VIROLE BERGEON N°3007](https://swissforniture.it/3196-large_default/allarga-stringi-virole-bergeon-n3007.jpg)
![ALLARGA-STRINGI VIROLE BERGEON N°3007 ALLARGA-STRINGI VIROLE BERGEON N°3007](https://swissforniture.it/3196-large_default/allarga-stringi-virole-bergeon-n3007.jpg)
4 different notches for tightening all sizes of hairspring collets and for reaming the hole.
4 different notches for tightening all sizes of hairspring collets and for reaming the hole.
4 different notches for tightening all sizes of hairspring collets and for reaming the hole.