Lathe Drilling, Countersinking, and Reaming - 1: Alignment of the Tailstock
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WARNING: Machine tools present a safety hazard. Improper operation can result in severe injury. These topics are for non-laboratory study only and are not to be used in conjunction with the operation of any tool or machine described herein. Never use a machine tool without the supervision of a qualified instructor.
Drilling , reaming , center drilling , and countersinking are performed on the lathe using the tailstock. In most instances this is accomplished by using Jacobs chuck or Morse taper drills just as one would with a drill press.

Using the tailstock for these operations requires that it is in perfect alignment with the spindle of the lathe.

One eyeball method you can use is align the tailstock is to mount a small center drill in the tailstock then move the tailstock up close a the metal part with a flat or turned front face which is chucked into the spindle. Clamp the tail stock and move the center drill into the metal so that it barely touches. Turn the chuck by hand. If the center drill scribes a small circle on the metal or leaves a little dimple in the center, the tailstock is out of alignment.
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label: lathe drilling, countersinging, reaming, tailstock alignment, indicating, center drilling, chamfering