Assortment of 12 renderings delivered in their storage box. Dimensions: 0.05mm to 0.55mm. Used in watchmaking to enlarge or adjust holes in small parts when necessary. To obtain a very cylindrical hole, it is possible to pass the canter on the other side to avoid a conical shape. Can also be used to clear or adjust bead holes when they become clogged. For better handling, these canters can be mounted on a tool holder chuck. For corking work. Tools used for reconditioning and adjusting holes when repairing old clock movements. Kalyane Diffusion 89 – in watchmaking since 1953.