Proper care of contact points is one of the basic considerations in gauging. Whether you are using a simple indicator gauge or a sophisticated surface finish instrument. Much depends upon the condition of the sensitive contact point, which is the interface between the gauge and the workpiece.
Comment: The UK is closer to deindustrialisation than reindustrialisation
"..have been years in the making" and are embedded in the actors - thus making it difficult for UK industry to move on and develop and apply...