Professional chronograph screw shoulder cutter designed for the precise adjustment and reduction of chronograph screw shoulders. Manufactured from hard metal for exceptional durability and performance, this specialized tool allows you to accurately modify shoulder height without the need to set up a watchmaker's lathe.
Simply measure the screw diameter, select the cutter with the corresponding hole size, and turn the screw clockwise to accurately remove the shoulder.
- 16 cutters with a 4.00mm diameter
- 12 milling cutters, from 0.40–0.95mm in 0.05mm increments
- 4 cutters, from 1.00 to 1.30mm in 0.10mm increments
- Swiss-made
