Boring on the Mill - 4: Rough Cut
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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.
It is important to note that the offset boring head is used to finish a hole to size. The hole must therefore have been pre-drilled . Once the work piece is pre drilled within a sixteenth of an inch from its finished size, use the offset boring head to enlarge the hole to a rough size.

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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