Lathes Page: 78
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0 Correct setting of tool 1o work.
SProlperly ground tool hlit.
FIGcRE 71.-Square thread tool.
b. Acme threads are cut with the compound rest set parallel to the
axis of the machine. The general cutting procedure is the same as
for square threads and the tool is set as illustrated in figure 73 @.
c. The depth of the Acme thread is equal to one-half the pitch
plus 0.01 inch and is measured as shown in figure 73 @, using a single
wire or drill of the proper size.
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United States. Army. Air Corps. Lathes, book, November 29, 1940; Washington, D.C.. (digital.library.unt.edu/ark:/67531/metadc96655/m1/80/: accessed October 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.