Convenient for you to adjust the, straighten kinks in the hairspring. Suitable for watch makers and watch repairing workers to use. 1 x Holder. Mainly used for holding the bridges of the watch wheels.
![Watchmaker Balance Truing Caliper Watch Balance Wheel Correction Caliper Tool ]](https://i.ebayimg.com/images/g/psUAAeSw2MppiU5C/s-l1600.jpg)