Threading Time - The Story of Die Heads and Taps

Geometric Tool Company, of New Haven CT, was a subsidiary of Greenfield Tap & Die in the 1950s. GTD merged with United Tool and Drill Corporation, of Cleveland OH, in 1958. These combined companies became part of TRW (Thompson Ramo Wooldridge Corporation) in 1963. This 1977 film promotes the Geometric Tool Division technology. Unfortunately, color film from 7 film promotes the Geometric Tool Division technology. Unfortunately, color film from the 60s often used a cheap color process which faded easily with time. The color in this film was almost gone at transfer time. We apologize for the imperfect color and contrast.