In PartOne of this article, I presented some reasons why shops should consider material-specific taps. This section will explore some of the features to look for in one. Before diving in, however, it’s essential to recognize the difference between plug and bottoming taps.
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Drilling has long been recognized as one of the most common yet most challenging of all metalworking operations. Tapping is even tougher. Aside from problems with chip evacuation and potential coolant starvation, there's the sheer amount of metal being removed relative to the available space for the cutting tool.