The straightness of a hole is a typical question in the course of any deep-hole drilling project. The industry standard guarantee for straightness is less than 0.001-in. run-out per inch given good ...

When drilling very deep holes, it’s important to allow enough stock for clean up after a worst-case runout of 0.001 in. per inch. A part that is 180 in. long should allow more than 0.180 in. for clean ...

On motion designs, there are many ways to align components. One useful approach is to drill twin holes into mating parts, and then use a pin or dowel to fill and align the holes. Here, the most common ...