We frequently calibrate gages and instruments in the dimensional field for labs that primarily deal with electronic or other disciplines. This occurs when their customers try to cut corners by adding one or more dimensional items onto an order they have received for their normal work.
Trying to keep a customer happy, they’ll subcontract the work to folks like us and all will be sweetness and light—until it isn’t. And when it isn’t, it usually works out that the ‘favor’ being provided costs everyone more than it should. Full disclosure: I know just enough about electronics calibration to realize I don’t want to go there so I don’t.