When a cylindrical surface, such as the OD of a shaft or the ID of a tooling taper, becomes worn or damaged, we use a process referred to as grind-plate-grind (GPG) to restore dimensions to original OEM specification.
How small is a micron, and why do we work in such a small scale?
Precision is defined as the quality, condition, or fact of being exact and accurate. But how close is “exact”, exactly? It all depends on the application.