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Several tools descend toward a component held in a dedicated fixture. The workholding locates the part and guides the tools so one feed stroke can repeat a group of holes.

Sources and model notes

The 1940 factory photograph establishes the machine silhouette and simultaneous case drilling. The maker, exact spindle count, engine model and complete fixture are unidentified. The visible teaching fixture is a qualified reconstruction.

Library of Congress · special drill press, October 1940Hammond · Modern Drilling Practice, 1919, pages 43 and 46–47

The Pratt & Whitney machine-tool company and Pratt & Whitney Aircraft are distinct businesses. Sources establish the scope of each equipment study; this shop layout is interpretive.