These Horotec truing callipers are designed for professional watchmakers seeking precise and high-quality work. It is ideal for the control of wheels or balances. Equipped with 4 safety runners, they offer optimal protection.

• 2 conical safety runners
  
• 2 ruby safety runners

The holes have a diameter of Ø 0.15 mm, enabling meticulous handling suited for the finest components.

A stop screw enables the fine adjustment of its opening.