Replace the worn keys and pin cylinders into place in order to attain accurate tolerances. This helps reduce sticking and helps improve reliability.

https://www.energyhouse.com.gr/component/k2/item/4-excepteur-sint-occaecat-cup/4-excepteur-sint-occaecat-cup?tmpl=component&print=1&start=1880

We replace worn keys as well as re-pin the cylinders, restoring precise tolerances, reducing sticking and increasing the durability.