LOCATING HOLES, DRILLING AND TAPPING IN CAST IRON
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✎ Suggest a correctionShows how to lay out a bolt circle having eight holes, to use the center punch as centers for drilling and to use a tapping chuck for set screws. From the MACHINE SHOP WORK series. Operations on the Drill Press, Vertical Drill, No. 1
Sources
- usgov-av-1974 — title, year, creator, length, color, sound, description
Record added 2026-07-02 18:27:50 · Suggest a correction