Boring on the Mill - 1: Using the Mill to Bore
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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.

The vertical milling machine allows the machinist to produce holes of various sizes within a positional tolerance of approxamtly .002" using the micrometer dials of the machine . If the milling machine is equipped with a DRO positional tolerance can be as close as .0005". In addition, a precision boring head, depending on type, can bore holes within a .0005 diametric tolerance. Therefore a quality milling machine using quality tools can produce exacting results.

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label: boring on the mill, rough cut, finish cut, spring back, cleanup, multiple stage boring, uses of boring bar, feed rate, coolant