THREADING TAPS AND DIES, PART VII
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Shows sequences and close-ups of the operations involved in tapping and threading as the worker views them in performance of the task. Explains the uses of taper, plug and bottoming taps, and shows die adjustments for obtaining the desired fit of threads to tapped holes.
Sources
- usgov-av-1974 — title, year, creator, length, color, sound, description
Record added 2026-07-01 03:46:10