out of parallel up as usual, to bore the back half of the box. This plan had lathe tail stock, because any deviation from the center of with the bed of the lathe, every machinist is of course motion in the dead center, O, would cause the boring bar to the advantage that he could see the tool cut… … es diameter at one end and 12 away from the cut. inches at the other. The small end necessitated the be too tight in one and too loose (between the lathe centers) + orm iC Population of the World, use of comparatively a very small boring bar and head, in another portion of each revolution. while…
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