Greenfield Tap & Die Co.Clawson, Chris2020-06-212020-06-21April 7 20https://dspace.montaguearchive.org/handle/MHS-01376/37912/25/48 GTD at Symmons Engr. Plant Boston Mass.;Editor's Note: Lathe - mounted component is being "reamed" with a tapered reamer which indicates that the component being machined will be a "press fit" to its mating component.