Several factors need to be considered when setting up in-process gaging.
In-process gaging allows a manufacturer to get control of its process and ensures that every part is good, thereby eliminating scrap. If parts are measured post-process instead of in-process, by the time a part is taken off a machine and inspected, parts are either good or bad and the outcome cannot be changed. With in-process gaging, by taking control of the process, it ensures every part is going to meet specifications.