I doubt there are many old enough to have done much way scraping. For a long time now the mating surfaces on machine tools have been finished by machine. You will still see mills and a few lathes that have scrape marks this done only to put divots in the surface to hold oil and reduce the amount of surface to surface contact. Sometime these scrape marks are still done by a person and a power hand tool that reciprocates and has a scraper on the end. The surface is first machined true, than scraped, than stoned to remove the burs. I’m not sure if machine rebuilders go to that detail any more. Today there are auto pressure lubrication systems that have done away with much of this.
Gary
