Cutting an Internal Acme Thread. (22 mm)

Shows how to set up the lathe and cut an in- ternal hand acme thread; how to griiul right and check the stocking and forming tools; why the compound rest is set at an angle toward the headstock when cutting a right-hand internal thread; how the finish forming tool is centered in the groove formed by the stocking tool; how to set the threading tools to the work; and how to gage the finished threads.