Explore

A long bed keeps the work, guides and spindle on a common axis. Explore the supports and feed mechanism that distinguish a dedicated deep-hole machine from a general-purpose lathe.

Sources and model notes

The 1941 federal machine-tool catalog identifies the No. ½B as a two-spindle deep-hole drill. The exterior is reconstructed from a surviving specimen, with modern controls omitted. Its exact wartime configuration and presence in this aircraft-engine production line are not established.

Office of Production Management · 1941 catalog, page 101Liberty Machinery · surviving No. ½B exterior

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.